I'm early transition, and pretty sure I'm completely gay, but if I were dating guys, the main issue would be safety. If they're a particularly homophobic/transphobic psychopath, they might feel justified in beating you to death to "redeem their manhood," and be too crazy to even care if they get caught for it. It happens occasionally. The secondary issue would be that I wouldn't want to be with someone who couldn't accept me for who I am. The third issue would be that even if their feelings are wrong, and based on ignorance, I do understand that everyone has flaws, and I'd rather not make anyone uncomfortable. (The first issue isn't a big issue among lesbians, but the second and third still are.)