It's mainly a few elite women who benefit greatly from standing with the forces that keep women down.

Stopped as attribute of a person, sex inequality takes the form of gender; moving as a relation between people, it takes the form of sexuality. Gender emerges as the congealed form of the sexualization of inequaltiy between men and women.

So the idea that there is nothing essential, in the sense that there are no human universals, is dogma. Ask most anyone who is going to be shot at dawn.

Feminism is built on believing women's accounts of sexual use and abuse by men.