You know, the debate about gendered dating is kinda interesting. It raises questions about evolutionary psychology, and how one determines their preferences. Much like the question about traps being gay, it is a deep analysis of the human psyche. It's not as though humans are physically attracted to a spiritual component of "gender" that is undefinable. If we happened to have a trans woman who somehow passed as well as Labelle thought they could, that person would attract a lot of male attention. Even without a vagina, there's enough people who don't need standard sex to have a relationship work.
But then, the reason sexual orientation is more set in stone than other opinions is because of the biological need for reproduction. With ideas like the "gay uncle hypothesis", people have put a lot of thought into whether or not the occasional gay person is good for a community's genetic diversity. So in that case, genitals would actually be the only determining factor for sexual orientation, more or less. But then, your innate biology isn't intelligent enough to know the difference. It's easy to "trick" your own brain into liking something you "shouldn't", since the subconscious isn't intelligent enough to know that secondary sex characteristics aren't primary sex characteristics.
How much of your sexual preferences are innate, and how much is cultural bias? I dunno, and neither does anyone else. I don't particularly care, either. Because either way, they're not gonna change. It's an interesting question, just not a useful one.
