I agree that "gays" can change to living what you define as a "normal" life which is what is socially acceptable and one of my best friends who is gay got married (to a woman) and has two wonderful kids but IMHO I still think he is gay. Most gays that I have known are not the flamboyant kind you see on TV. Most are just down to earth people who are attracted to the same sex.
I personally don't understand how gay person could "choose" to be gay due to only 9% of the population being gay. Why would anyone choose to limit their potential choices of a mate and be socially rejected?