Oh, I don't know if I want to go here but, do you think pedophiles share the same argument for being accepted? Could we consider it a mental illness?
Not trying to be abusive, but this does make me question it.
That point is very commonly made.
My personal opinion is briefly, I do think homosexuality is not natural, and people would be happier if they weren't. A lot of people have the desire to pass on their genes, and have a really hard time doing that when they're not sexually attracted to the opposite gender. I think that everyone should have the opportunity to have children, and I don't know how successful homosexual couples are with the whole adoption thing; there's too much social stigma.
I think what you're driving at is, should it be something we try to fix? Well, I think people *have* tried to fix it psychologically, and it doesn't work. People commit suicide when pressured into being what they're not, etc. If it's a genetic/chemical/hormonal issue like I think it is, you'd have to correct it very early on, but we don't know anything about how to go about doing that.
Once we know exactly how to prevent it, should we? That's a moral question as well as a medical one. As a Christian, would you say medicine is interfering with nature if we can prevent homosexuality? Heh, an interesting question for you.
I think if we can track it down and it does turn out to be something broken, and we can correct that without breaking anything else, sure, we should do it. I think those people would live happier lives. But, the caveat of not doing any other harm is a very big one; we need to know 100% that it doesn't cause any other changes to them. Genes are not completely understood, no matter the headlines of the Human Genome project.
But, I'm an odd duck. I think eugenics has a lot of potential for good if used correctly. Not like Hitler, but more like advice: "Hey, if you can pass along a strong dominant trait that will kill your children by 45 because of heart failure, it might be a good idea for you to adopt instead."
Strong eugenics, weeding out ALL of the "bad" traits is too clumsy, though. A diverse genetic playground is good for the race. Many of our past geniuses have been plagued by one disability or another, so we have no way of knowing if bad traits might be related to good traits. With our current technology and science, the outcome from turning switches on and off in genes is guesswork.
Don't get me wrong, I love science. I have a sub to Discover. But I don't fool myself into thinking we are beyond the tip of the genetic iceberg.