In my opinion, no feminism worthy of the name is not methodologically post-marxist. - Catharine MacKinnon

To be a prisoner means to be defined as a member of a group for whom the rules of what can be done to you, of what is seen as abuse of you, are reduced as part of the definition of your status.

Compare victims' reports of rape with women's reports of sex. They look a lot alike

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.