The bar is the male kingdom. For centuries it was the bastion of male privilege, the gathering place for men away from their women, a place where men could go to freely indulge in The Bull Session.
Shulamith FirestoneJust as the end goal of socialist revolution was not only the elimination of the economic class privilege but of the economic class distinction itself, so the end goal of feminist revolution must be, ... not just the elimination of the male privilege, but of the sex distinction itself; genital differences between human beings would no longer matter culturally.
Shulamith Firestone