Is Being Gay A Choice?

There are many people who think that being gay is a choice that we make. My general response typically goes something like this:

Why would I choose to life my life where society will ridicule me, where it's ok for someone to kick the shit out of me because he or she doesn't agree with the way I live my life, where I have rights taken away from because society doesn't approve of me?

But after seeing this video, I think my response is pretty inadequate.