I believe that some might be born with a genetic predisposition to homosexuality, kind of like some are born predisposed to alcoholism or myopia or diabetes. But whereas the latter two are physical ailments, the former is a psychological one -- a state of mind as much as biochemical determinism.
When one reaches an age where one makes decisions, one decides whether to be homosexual or not. No one is born gay.
I just don't agree with that...especially since it isn't proven by science. You will never get me to believe that some gays CHOOSE to be gay.