And men have given input. A lot of it. And different depending on the men who give the input. The thing is that part of the input is "I say that I listen but I won't really listen or make changes regardless of what you say, how and when".
At that point, you might stop talking to men and just see what you can do on your own. Or just walk away. Not from all men, but from the one who have give us that input. Or worse, the ones who listen, discard what women say and give another lecture about how we are all wrong and what we should really want is what is convenient for them and what we should be really be saying is what they want us to say. Or simply be quiet. Because "women talk too much, right?"
I'm quite sure that the "fuck the patriarchy" (which is not the same than fuck all men) aren't meant for men as a public but for women like me, who are more moderate and less militant on our feminism. Look at the context: A cardboard at a protest. I say it must be working because more and more women are joining the protest and changing their behaviour.