And women no longer have to suck up all the crap in silence to survive. The domestic violence, the drudgery, the sex being quite legal to take from you by force if you didn't give it willingly (while magazines told you about your wifely duty to let your body be used to meet your husband's needs), the subordination, the hours and hours it took every day to keep a house clean, clothes clean, people fed.... the Grandma's Song from Billy Elliot sums it all up. 'Seventeen - that was it, your life ended when you had a ring around your finger'.
Now women don't have to stay when they're unhappy. They are free to have standards of how they're willing to be treated, of the amount of drudgery they're prepared to suck up, how much they will enable and facilitate a male partner to have freedom they can't share in, the inequality they're prepared to absorb. (Although if you go to AIBU and relationships you'll always find women scolding other women for not being sufficiently doormatty enough to win Good Girl Patriarchy Cookies).