That may be true in some cases, but Yahoo ran an article last year reporting a study that showed a 15-fold increase in homosexual sex among women over the last decade. This is clearly a culturally influenced change in behavior, caused primarily by the explosion of pornography, in all likelyhood (more women are obviously going "bi" - BOING!!!). Now, there are homosexuals who seem to be that way by nature, but alot of it is cultural.
I really do not like having pornography flaunted publicly. I am libertarian (or libertine) enough to think that people should have some sort of access to pornography if they want it in private. But I definitely do not like it made public. I do not want children watching it, and I do not like it forced upon me.
I feel the same way about homosexuality.
I remember, in Amsterdam, standing in the checkout line of a grocery store, with my son, both of us unable to avoid seeing a prominently displayed magazine on the cover of which was a close-up of a woman performing fellatio. I was offended. (And I am not easily offended.) If people want to watch such things in private, fine! But I hated having it forced on me--especially when I was with my son!! I could have just as easily been with my daughter!!!