If you think this is the same idea fascists have, you've missed a few nuances. Fascists believe that humans suck, and people have to be humans. I believe that human is a sucky thing to identify as. The difference is that fascists criticise people for being born human, while I criticise people for choosing to be human. I said that humanity is a harmful social construct. If you think fascists are acknowledging that the conditions of our identities are culturally relative, you don't know much about fascism.