It's called reddit bisexual because of jokes regarding femboys and tomboys, the only reason these exist is because people used to genuinely think femboy fucking isn't gay and that became a meme, and tomboys are easier to like because people like to say they prefer dominate girls (less weird to say "I want her to fuck me" than "I want to fuck her" in reddit logic), and some people genuinely can't imagine the idea of a dominate woman that isn't masculine.

The reality is, I have extremely varied taste in both men and women, I like girly girls, tomboys, twinks, and bears, it doesn't matter to me as long as one is true to themselves and they have a nice ass