I agree with you Jerr. I could not help but be attracted to girls -- I was a kindergarten cad. I didn't understand what it was I liked about them so much, but boy did I like it. I have also TRIED to find men attractive. I TRIED to open my mind to that possibility, but it just didn't work.
If it is a choice, it's on the level of choosing to slow your heartbeat. In order to get control over your base animal instinct attractions, you'd have to be "thinking" with parts of your brain like your medulla -- very difficult.
And, Yorick, he makes a good point. If you really WANT to prove him wrong, all you have to do is CHOOSE to be attracted to a man. C'mon, man, show us you can do it!!