Being gay and hating being gay are two different things.
It is a personal choice in my opinion really. Some people prefer the oppisite sex some people prefer the same sex. This obviously can be influenced by different factors e.g. having a gay friend, gay member in your family, having some kind of gay experience. But some people are straight to begin with well in their opinion and just have a drunken experience and actually realise they liked it. While as some claim they knew from early on. A female at my school said she knew from about 2-3 but I find it hard to believe and I cant remember much of then anyway's. I do know I was more interested in being my age and didn't really see people in the way I would today.
You mention people not wanting to be gay. To me that's like liking something, knowing you do and trying to fight it. I like chocolate, I could say oh I don't like it but I do. I think that the people who do turn gay and fight and deny it usually only do because of its connotations. They deep down probably want to be gay, but don't want the prejudice and don't know how people will take it. I remember someone upset once because he thought he was gay, but also religious and hated the idea of being gay. I think maybe deep down he wanted to be gay, wishing he could be accepted.












