Originally a comment by Artymorty on The T is not the LGB.
Tatchell’s wrong, of course, about bisexuality.
Sexual orientation is not culture-bound, and it doesn’t change with the political tides. There doesn’t appear to be all that much variation in the amount of same-sex sexual behaviour across times and cultures (despite what the artsy elites of ancient Greece and Rome wanted us to believe). There are two instinctual factors in sexual behavour: sexual attraction and sexual aversion, and both are almost universally polarized along the sex axis.
The vast majority of people exhibit a very strong preference for the opposite sex, and a moderate-to-significant aversion to the same sex. A tiny minority exhibit the same pattern but … Read the rest