I do have a question regarding this topic though.
As a heterosexual male, I can say without a doubt in my mind that Men do not "turn me on" in the slightest bit. As far as I can remember to my childhood, that's never been an issue. I can remember being attracted to girls since 1st grade. It's not something I've ever made a choice on. It's just simply how I was. I wasn't taught what was attractive, and what wasn't. It was just hardwired into me.
What if that is not the case though? What if for a mans whole life he does not find women in the least bit attractive? But men do it for him?
There are people out there like that. I know some. They did not just wake up one day and decide "I think I'm just gonna start smokin pole from this day forth."
Sure, some homosexuals make the choice. I knew a girl in highschool who became a lesbian because she was horribly molested by a man as a child, and it drove her to only being comfortable with women. She still found men attractive, but because of her experiences she couldn't bring herself to be with them.
I know others though who never had that choice to make. From day one, they just didn't see women the way we do. And to me, thats proof positive that for some, it's not a choice. Maybe some of you don't know any homosexuals, or actually discussed the topic with them, but I'd honestly suggest you do if ever given the oppurtunity.