I don't get the uproar over what Cynthia Nixon said. If it's a choice for her, it's a choice. I think I was born being gay. She may think differently. I'm not even sure you would have to be bisexual necessarily to think it was a choice.
Thankfully not every gay person is exactly the same or thinks the same. However I actually do think saying it's genetic could potentially be used against us way more than saying it's a choice. I do think I was born this way. I just hope science doesn't get into the wrong hands.
Oh and I think Cynthia Nixon made a great choice.