An excellent example of structural discrimination - one group both organizes and controls the perception of value in a field. It becomes hard to unless you support the structure - hence women who are forced to act on male terms. "Karen's alright, she's like one of the guys."

Such a structure becomes "sex inclusive" (accepting biological men and women who act masculinely) and not "gender inclusive" (accepting biological men and women who act masculinely or femininely).

but perhaps there are reasons other than sexist bias for organization that favours one sex over another.