Sexual preference should have no bearing on gender imo.
Gay man? Straight man? You're still a man
Lesbian? Straight woman? You're still a woman
If you want to appease those who have a legitimate (medical) condition, have an "other" option but let's not go down the rabbit hole, folks.
I don't buy this identifying nonsense... can I identify as a car? or a giraffe? I'm a biological man but I want to identify as a women.... sorry that's the hand you were dealt. Doesn't change the fact that you're a man