If I'm not trying to date or have sex with someone, i honestly dont care what gender they are or identify as.
Laws already require that both genders be treated the same with the only exception being which bathroom they can use (and before we actually iron that out, we should discuss why we have differently gendered restrooms to begin with, but thats a long conversation).
Clothes are fashion, not gender.
Behavior is personality, not gender.
Saying you are the opposite of your physical gender will not change your genitals or other medical features associated with gender. It will also not force society to accept how you dont fit perfectly into pre-concieved gender roles and stereotypes.