I'm not super worried that we'll be crushed under a matriarchy. Heck, in some regards a matriarchy might be a bit gentler than a patriarchy :-)
Edit: I seem to have touched a nerve, a lot of weak/sensitive men around here, it seems.
Men and women will get along as they always have, with ups and downs. There are no "identity groups" because we aren't and can't be enemies. There are just a few loonies on both sides making a ton of noise, and they're getting amplified by the internet. They'll either get boring at some point or just be ignored completely from the outside of their circles.