I used to believe that it was a choice, but I'm not so sure any more.
Through my involvement in politics, I was serving as Vice Chairman of the Planning Commission years ago, and got to know well someone who is homosexual. I'd had quite a few work for me over the years, and, while I felt, and still do, that the lifestyle is disgusting, I never had any problem with it as long as they didn't try to nibble on my ear.
But they were just aquaintenances. This guy became a friend. He was a landowner who was getting screwed over by local government and, by that time, we had finally achieved a Conservative majority on the Commission (I ran the liberals off, bwuahahahaha!!!!).
Anyway, we worked with this gentlemen for quite a while trying to get his rights back, and I got to know him quite well. He was a Conservative, and very knowledgeable on a variety of topics, so we became friends. Good friends.
On several occasions he hinted that there was something he wanted to tell me, but was afraid to do so. One day, some materials arrived related to his dealings with the local thieves (read: our City Council), and in with it was a sealed envelope addressed to me. It was a note telling me that he was homosexual and explaining that he was afraid to tell me face to face because he was worried about how I would react.
Beyond my initial shock, I was very, very disappointed in myself because I had made him to feel that he could not tell me personally; that he had to do it in a note out of fear of my reaction.
I called him right away, and after apologizing for being an insensitive dickhead, we talked at length about the issue. It was the best education I've ever gotten on the subject. This was a guy who was Conservative, intelligent, successful and very much normal and "macho" in every way. I have a hard time believing that he just chose to be homosexual.
Bottom line for me is that, while I still find it repugnant, I'm not so sure anymore about the genesis. I also think that anyone who claims it is either genetic or choice, is full of crap. I don't think anyone really knows.
Russ, NCNE