Having the cake and eating it too

When more females are selected to play in orchestras by blind auditions, it shows bias against women.

When blind tests like SAT don't give females better scores, it shows bias against women.

It's just when women are doing better in law.
It's unjust when women are doing worse in CS

teaching boys about feminism

Feminists don't want men to control/influence women's behavior, that's why they make sure that boys learn this stuff in school before they harden into men.
Feminists stand for equality, of course.