I don't think homosexuality disprove evolution so much as it disproves evolutionists.
My point is to question why people who trumpet Natural Selection seem to excuse homosexuality.
I believe evolution is a moral vacuum (but that means homosexuals--or anyone else--may be extinguished with moral impunity) but evolutionists seem to justify morals as being a reflex for propogating the species...but then they abrogate the moral precept of propogating the species in the name of enshrining homosexuality.
I think we have to be careful here. Evolution by natural selection makes a good explanation for the existence of many of our moral values and intuitions, but it doesn't justify them. Your criticism would apply to those who think that evolution does justify our moral values, but not to those who don't.
And I do think we have more choices than to say since evolution does not justify morals, then nothing justifies them. Indeed - much of the moral debate in philosophy is about just what the term "moral" actually means, or should mean. I lean somewhere towards the belief that what is "moral" is what helps people, and what is immoral is what unnecessarily harms people. And of course, we could debate that but I think that it captures what we generally mean by "moral" pretty well. And we can see homosexual partnerships out there that are just as helpful and beneficial to the people in them as heterosexual relationships. So homosexuality helps people. As far as I am convinced, it doesn't harm anyone - so I think its discrimination and disenfranchisement is morally wrong. So, I think evolution is true and I think homosexuality is morally good.
I am of the ever-increasing opinion that much of what passes for "gay rights" politicking isn't so much an acceptance of homosexuality as it is a rabid hatred of Christianity; especially considering how Islam, which is far more deliberately cruel towards homosexuals, seems to be immune to such criticisms.
I don't think Islam is immune, but lets be honest - Christianity is basically
the self-declared domestic enemy of homosexuality. Yea, Christians aren't chopping peoples heads off, but they, as a population, certainly make every tenacious effort to fight the homosexuals rise from disenfranchisement. So rebelling against those efforts is likely to have the greatest effect on the lives of US homosexuals, and therefore I cannot blame them for focusing their efforts there.
And for what its worth, I do know at least a couple homosexual men who are very spiritual but have basically been dis-invited to their Christian churches, as long as they maintain a homosexual relationship - something they can't for the life of them be made to feel is morally wrong. So there's that too.