In order to be “cis” I would have to believe that gender is anything more than an invention used to create a hierarchy amongst the sexes (with females at the bottom). I am female, everything else is made up stereotypes linked to my female sex that I don’t identify with in any way. I don’t identify with a gender.
My assumed “gender” is an aspect of the oppression I face as a female. I cannot derive privilege from my oppression.