Then too, the number of persons with a bisexual orientation is much greater than the number of persons whose orientations are predominately or exclusively homosexual. That may be why so many men seem to think that being Gay is a matter of choice. Or why some think that homosexuality can be cured. Men with slight to moderate homosexual feelings, because of their religious beliefs or cognizant of the opprobrium of society, are able to put those desire aside. Generalizing from their own experience, they find it hard to understand why others cannot do the same.
Bisexuality is as old as time.
It was the ancient Greeks who gave us democracy and ideas of personal liberty including same sex relationships. These were celebrated in art, which may be viewed today. See Ancient Greek Art . A more recent account of bisexuality here . One of the effects of the modern Gay movement, is that Bisexuals are increasingly unwilling to repress their feelings.