But it depends on your interpretation of it. You can't choose what you ARE but you can choose what you do. Just because you don't like chocolate ice cream doesn't mean you can't eat it. But you still won't like it...
You are beautiful, in every single way <3
You're born homosexual. You choose to be gay.
"Wanting to be someone else is a waste of the person you are." - Kurt Cobain
I'm going to go ahead and state a third option.
You don't choose to be the way you are.
Yes, there is solid evidence that homosexuality is not a choice and it cannot be changed. But I don't think we can say for certain that it is determined before you where where born, even if that is the most likely scenario.
I'm also going to be a huge pain in the ass and also say that "who you are" and "the way you are" (sexual identity/orientation) are two very different things. As others have pointed out, everyone chooses who they are, even if they can't choose the way they are.
In other words, I'm not voting.
You are born gay, straight, bi, trans, whatever. You choose what to do with that knowledge.