No they'll pick on men for being virgins, for being gay, for being cucked on, for being effeminate and weak, and so on. That's how you target masculinity, because masculinity is something men have to earn via proxy traits, whereas femininity is something to be lost.

It's equally vicious, but it's not seen as equally cruel. And the idea that all trolls are male doesn't hold. Women are far more cruel to each other than men are to them. Somehow the Mean Girls of the internet never get considered.