The approach these women are using—nonviolent noncooperation—has a record of success. Plus, in this case, victory is instantaneous. The women of 4B have already largely freed themselves from patriarchy. They are not engaged in some vague long-term plan to change men.
I mean, c'mon! Women can change men? Men are stupid and stubborn. They don't willingly change. It's easier to change yourself. That's what women are doing.
Men don't like it? They're afraid? Too effing bad!