Show me evidence of there being such a thing as a male and female brain (and that female brains can then exist in male bodies) and I will change my mind.
Show me the evidence that being biologically female in a sexist world is not the root of women's oppression and I will change my mind.
Just the same
Until then I retain my right to call out your nonsense. Flat earthers indeed. It is you who believes penises can be female, is it not?