One commenter gently disagrees:
It’s one thing to suggest that our sexual attractions relating to personalities, temperaments, interests, hobbies, familial backgrounds, hair colour, eye colour, height and size, are influenced by society, and we should all be really careful about letting bigotry seep into those additional preferences when choosing a partner. However, as soon as you start to question the sexual orientation (including gender and sex/genitals/body), you will lose 99% of the people you are talking to. The experience of the vast majority of people (gay, straight or bi) when it comes to sexual orientation is that genitals matter as much as gender identity. And there’s nothing wrong or bigoted about that.