Re-reading this thread, including my own posts, I realized the problem is that sexuality has too much of a sexual connotation due to the term's name. Homosexuality, asexuality, bisexuality, heterosexuality, they're all far more than just who you are and aren't ****ing. People seem to think it's just a matter of what uglies you bump, forgetting that sexuality is who you are physically attracted to, and who you are emotionally attracted to, who is excludes from these forms of attraction, what you're aroused by, and what you look for. None of these things can be controlled, so how can it be a choice? You can't choose what arouses you, when you're aroused, how much you're aroused, what emotions you feel towards someone or something, or how much, you just do.
The environment does have an affect, the womb is the environment that causes biological influences to your body as it prenatally develops, and that leads to your sexuality later in life.
I find it absolutely astounding, asinine, and kind of just plain sad, that you have gay people, who are ACTUALLY GAY, saying ¨I didn't choose this¨ and then being told by straight people, who have no idea what the feeling is, nor will they ever experience it, saying ¨No, you did" like they chose their sexuality.