EB,
With you being the only one who knows where that boarder between meaningful and meaningless is located oh all-knowing one. 
i haven't claimed to be able to perfectly define the boundaries of the "natural" - a concept which, if you remember, i have repeatedly described as being so broad as to be almost meaningless. i could say much the same about the word "healthy", but that doesn't make me inconsistent if i disagree with someone who says that "Dead is healthy". Likewise with the alleged "unnaturalness" of homosexuality.
You really don't disprove my statement seeing how you have also explicitly said "being natural is not always a good thing". In which case you asserting it as natural IS meaningless.Why? Just because i consider the category of "natural" (in so far as it means anything concrete) to be value neutral, i can't say anything further about inclusion or exclusion from it? That doesn't make any sense.
If you want to get snippety about what is actually written why don't you take a look at what I actually wrote - The statement is actually based on the fact if you are going to promote something based on behaviour found in the animal kingdom you can't nit-pick which ones and be consistent Do I say you are promoting it as "a good thing" in that line or that you are just 'promoting'? Which you have been doing - promoting it as "natural". Sheesh 
"Promote" (in this context) literally means to say that whatever you're promoting is a good thing. It doesn't make sense to say that someone promoted X as a bad thing. So your suggestion that i was "promoting" homosexuality because it was found in the animal kingdom actually contained within it the assumption that i had
said it was a good thing on the basis that it was found in the animal kingdom. Which i have not done. Again, i think you're confused because you consider "natural" and "good" to be synonymous, but i dont, and since i have explicitly stated that many times in this thread, your continued insistence that i mean one thing when i say the other can only be the result of deliberate misunderstanding or poor comprehension skills on your part.
So no, homosexuality is indeed an unnatural act that perverts the self-evident purpose and design of sexual intercourse (perversions being understood as "bad" no matter what Humes thinks). Animal behaviour having no baring on human behaviour as animals have many behaviours that would be abhorrent for human beings to perform, homosexuality amoung them.Well there's a lot to unpack in that statement. Most of it subjective assertion. You have not made any compelling case for considering homosexuality to be "unnatural", but i invite you to do so. "Perversion" is a totally subjective derogatory term which really neither requires or deserves a response. If name-calling is all you've got left...
As for animal behaviour, i have not and would not claim that it is in any way binding, but it gives those of us who believe in common ancestry at least some useful data to compare with human behaviour. And when you say that animals do many things which it would be "abhorrent" for humans to do, you are just stating your own opinion, right? Because many humans (not to mention animals) clearly do not consider it abhorrent to form romantic and sexual relationships with people of their own gender, and have apparently done so in every culture, historical or contemporary, which we have detailed knowledge of, despite facing often fierce persecution as a result from people like you. Why on earth would anyone
choose to be gay in
Muslim countries where homosexuality is punishable by death?
"i think even a cursory reading of the Bible would show that a great deal of moral progress has been made since those books were written. i am certainly grateful that most people in the Western world dont feel compelled to kill disobedient children, or to stone a young woman to death on her father's doorstep if she is found not to be a virgin on her wedding night. These are things explicitly mandated by the book which you (laughably) claim to derive your morality from."
And which would happen again if the exact same circumstances that such acts were performed under were the same today.This isn't simply recorded history EB, these are the alleged commandments of the creator of the universe. Are you suggesting that there is a remotely conceivable set of social or cultural circumstances in which it would be the right thing to do to stone a woman to death for not being a virgin on her wedding day?
And I have responded that the correlation means the exact same thing for all social groups under my world view - everyone is guilty of sin.Ok then, so the higher rates of STDs and promiscuity which you brought up in the case of homosexuality are entirely irrelevant to our discussion of the morality of homosexuality, because all they show is that homosexuals are human and - like everyone else - guilty of sin, in your view. You regret bringing it up. No worries, let's move on.
I already said YOU are the one constantly bringing up promiscuity, but it ultimately doesn't matter because homosexuality with any amount of partners is simply more receptive to STDs than monogamous heterosexual relations.You are misinformed. Anal sex is a risky sexual behaviour, practiced by something in the region of
a quarter of heterosexuals, between a third and half of male homosexuals, and by very very few lesbians. Lesbian sex is actually considerably
safer than traditional heterosexual intercourse. Why do you think
cervical cancer screening services dont bother too much about women who have never had penetrative vaginal sex - because heterosexual sex is itself a risk factor for cervical cancer, not to mention HPV and fungal infections. Monogamous or otherwise.
If a woman was choosing her sexual bahviour on the basis of least risk, as you seem to be advocating, she'd probably become a monogamous lesbian. Do you not see this as a problem for your analysis that
"STDs are simply a risk for homosexuality in it's entirety"?
homosexuality and promiscuity are both catagorically sexual behaviours with largely hedonistic motives 
It's sex EB. It's a crazy mix of hedonism and altruism, emotion and physicality, commitment and abandon. It's different every time, but if you're telling me that you unequivocally
know that homosexual sex is all about casual hedonism, then i'm going have to either call bullsh*t or ask you to come out of the closet so we can discuss your experiences without pretence.
...since homosexuality opperates under the notion that there is no one set context for sexual behaviour it's not surprising to see many homosexuals act like there's no one set context for sexual behaviour. 
As if homosexuality was some vast anti-moral-establishment conspiracy. Why should everyone organise their lives according to
your ideas of the correct context for sexual behaviour?
So again, I've never said "inevitably leads", but it's not that big a jump to see when the ratio can best be described as 'overwhelming' (less than 3% are "monogamous" by some studies)....which you feel no requirement to reference, or probably even to read, since they conform to your prejudices and therefore merit very little critical appraisal.
Here's an issue for you, if you determine homosexuality as a state by a genetic component like race, how exactly do you differentiate between homosexuals who DON'T have that genetic component, and those who do, but are solely practicing heterosexuality? Is a homosexual always a homosexual even if one's never practiced homosexuality even once? And can you tell the difference between such a person and a heterosexual like you can race and ethnicity?Ok, well just to be clear, i dont consider sexuality to be quite like "race" (in so far as i agree that race is a valid construct), because it isn't
only genetically determined, as can be seen from the 50% concurrence rate in monozygotic twin studies. Some people may be "born" gay, while others are "made" gay, while others (most?) may be a mixture of both. i dont know. From talking to gay people, i believe that none of them had a choice in the matter, so whether it was genetics or early environment seems a bit of a pointless distinction.
As for telling the difference, without access to the technology necessary to "read" the brain in all its complexity, it is currently only possible to reliably determine whether someone is homosexual when they exhibit certain behaviour. Not that this is particularly unusual. Being able to roll your tongue is a very simple, single gene, trait. You either can or you cant. But unless i have a stupendous amount of technology at my disposal, i cant tell whether you're a tongue-roller or not until i see you either do or fail to do it.
This is not to say that sexuality is like a kind of mental Schrodinger's Cat. We are begining to find ways to see into the box. For example, there are recordable and reliable changes in brain activity when we are exposed to images which we find sexually arousing. Showing an individual a variety of gay and straight pornography while he is in a Functional Magnetic Resonance Imagining (fMRI) machine is a quite reliable way to tell whether he or she is hetero or homosexual.
This study is an example of such an experiment.
So, in one way, no, we can't tell the difference between people of different sexualities the way we can between people of different races, yet. But i would question how precisely
you can tell the difference between people of different races/ethnicities. Perhaps not as well as you think you can. For example, what race is she:

Or him:

The first one is Cote de Pablo, who i thought was a rather attractive example of how fickle the concept of race can be, since she is South American, but convincingly playing an Israeli in NCIS. The second is Tiger Woods, who you might be tempted to describe as African-American, despite the fact that he has Asian and Native American ancestry. It's not so easy as you make out.
...human beings having different genders self-evidently means for the two to go together.You're over-interpretting. Clearly anyone trying to reproduce homosexually is making a mistake, but there is no non-dogmatic reason why people shouldn't choose a life-partner of the same sex. i have even showed you some evolutionary methods by which homosexuality could be selected for, which you ignored, of course.
That and the fact many homosexuals admit to having some degree of attraction for the opposite gender.Source? No? Too much to ask i suppose. Regardless, i fail to see how this is any kind of argument. i already mentioned left-handed people - a trait much more genetically fixed than sexuality - who often develop to be ambidextrous due to the not-so-subtle pressure in schools to write with the right hand. If that sort of societal pressure can alter the expression of a behaviour fixed from before birth (ultrasound scans have demonstrated that foetuses have a reliable preference for which thumb to suck, which translates into right- or left-handedness after birth), then why should we expect it not to in the case of a behaviour subject to so many different influences?
"The difference i would suggest there is that being a rapist is more like a fetish, because it is an obsession with a particular sort of sexual experience which is unpalatable to most people. It does not qualify as an orientation towards a particular sort of partner."
So is homosexuality - a particular sort of sexual experience with the same gender. It's orientation being simply not caring about willingness, or caring about unwillingness.Stretching semantics to breaking point does not qualify as an argument.
I'm denying my heterosexuality was set in stone from the moment I was in the womb.i'm not suggesting that it was. It may have been, but either way, it was not a choice, was it.
"Again, to anticipate your most obvious responses, this does not mean that i am morally equating bestiality and pedophilia with homosexuality."
Obvious responses, because you quite explicitly say it's all the same as the orientation you support.
And really, your only objection to pedophilia is asserting it would be harmful to children (and I notice you ignore beastiality all together). Seeing how the basic process of sex doesn't change with age and your stance on rape, it would seem 'consensual pedophilia' would be entirely consistent under your world view. Both would be consenting, pedophilia is a state of being, the 'act' is the same for adults, you really have nothing to seperate your view on one behaviour from the other.i dont know if you've noticed that our laws generally assume that children are not capable of giving consent for certain types of activity, for the very obvious reason that they are not yet mature enough to fully understand the consequences of their actions. That alone mandates against the "consensual pedophilia" which you suggest. Pedophilia shows a strong correlation with left-handedness (not the other way around, by the way, just to reassure any left-handed people out there), which strongly suggests influences prior to birth - whether genetic or pre-natal environment - being responsible for the
state of pedophilia. No doubt some pedophiles are also "made" by social or cultural influences. My point remains that we dont get to chose who we are attracted to. We only get to chose what we do about it. However, since allowing adult homosexual behaviour hurts no one, and makes some people very happy, i am unable to come up with any good arguments against it. Fortunately i can rely on you to provide very bad ones.