Feminism is not the same thing as equal rights. You could grant the right for everyone to display machismo and prove hard core-ness. Having a Y chromosome might not protect you from ridicule and/or abuse. You could also keep everyone in their place but make sure that an equal number of citizens at a particular station have XX and XY chromosomes. You could keep the patriarchy but split the top with an mirror equivalent matriarchy. We could raise an elite girl to believe she is entitled to make commoner males do degrading sexual acts for her entertainment. Also make sure the inferior set of males are made to feel insecure if degrading sex acts are not desired.