Nature or nurture? I don't know. I'm not an expert. But, I do know that the first time I went googoo over a girl was in the 4th grade. I still remember her (1954 for those who care). I also didn't make a conscious decision to like girls. It was just there. I didn't think about it. It just was. I personally can't even envision a moment when you could make that decision. You are born one way or the other, as far as I can tell.
I agree with this. For some it may be a choice from events that have occurred in their life, but I think for most its not a choice. Is there a *** gene. Not that I know of, but that doesn't mean that their isn't an underlying psychological or other issue from a young age whether someone was born with it or developed it in their first few years of life (hence why people will say I was a homosexual since I can remember).
I personally think homosexuality goes against nature. And if something goes against nature then IMO there may be an underlying issue as to why that is the case. Don't know much about the science of it all, but I think everyone can agree its not a natural state of the human being.