Cis is an adjective. It describes someone who identifies with the gender they were assigned. We do not complain about being called trans. We complain about being called "tranny" is a derogatory insult. However Mr. Musk has not banned or even given infractions to people who use it
Homeboy. You don't recognize Biology? Anthropology? So you don't recognize the idea that humans are "homosapiens" or Domaine Kingdom Phillum Class Order Genius Species? Or you don't agree with the study of ancient Egyptian society, Greek mythology, or anything like that? Insane.
Because Nazis aren't just those German bad guys. There are people who still want to perform genocides on Jewish people or queer people or anyone. Sure, don't call them Nazis. It doesn't stop these genocidal maniacs from existing. They're still fascist.