I'm bisexual... and even before I realized I was so I supported gay rights. What frusterates me is that many people defend us 'non-straight' bunch by saying that it's genetic, when I really don't think it is. Judging only by what I've seen, especially considering the only person in my wide, wide family who happens to be gay is a very, very distant cousin, I really have to disagree that sexuality is genetic.
Being gay has only half to do with genetics, but that doesn't mean that there is anything wrong with it. If one were to say that sexuality is genetic, then they're essentially saying that gays are 'devolved', which I don't believe in the least.
I believe we're all born just 'sexual'. We like our sexual organs stimulated, simply put, but by what we experience throughout life determines 'by what' we want to be stimulated by. Don't get me wrong, being gay, straight, or bi is NOT a choice, but instead a subconscious gathering of every experience you've had in life, as well as how your brain, constructed through genetics, reacts to it.
Your sexuality is NOT a choice, but saying sexuality is genetic is as ludicrous as saying someone who likes cartoon-pornography does so because it's coded in her genes. Though she can't suddenly 'choose' not to be turned on by sexually explicit cartoons, it's not coded in her genes either, much the same for us homo and bisexuals.
Either way, in this instance your place was to ask, our place was to answer. Even if I do somewhat agree with you (though your logic behind it is completely ridiculous especially considering genetics control hormones), you don't know your role. =)