It's funny because this belief that women's and men's brains are fundamentally different is used to justify how "trans women are real women because they have brains closer to a cis woman than a cis man" which is accepting a neurosexist premise, because even cis women's brains are not the same, and if a trans woman DIDN'T have a brain closer to a cis woman, it shouldn't matter anyway as you can't tell someone's gender by looking at their MRI.