mlurp, my friend, I can assure you, it isn't any more choice than you can choose to be smart or talented. You either are or you aren't.
American Idol is "proof-positive" of people who choose to sing, despite the fact that they can't.
Who would choose it? Do you "choose" to be male-thinking, or is that just the way nature made you?
What about people who feel, in their bodies' and souls' that they are the "wrong gender"? Do you suppose they chose to believe what they believe, or that it is reality, so much so, that many undergo gender reassignment, to correct what they feel is in error?
I have never wanted to be anything other than a man...I am. But I did not choose to be attracted to other men...it was not a choice. It was reality, for me.