This group doesn't even actually read or watch most of the shit they go after, they just trawl around looking for targets to attack. The idea that anyone loses readers or viewers when they sperg out is laughable. The only thing they're a "fan" of is attacking people, making them even worse than spergy male fans who are more likely to actually give a shit about a work itself.
They definitely do attack and go after men, by the way, men are just way less likely to dignify them with a response or acknowledgment. I've seen lots of attacks on male creators, artists, and celebrities with 15K notes or more on Tumblr, but here's the thing: the men just ignore it. So eventually, the bullies give up, since they're just whoring for personal attention for themselves. They don't actually care about the content, works, issues, characters, or any other people besides themselves.
And yes half the time if you poke around on one of their accounts you see them drawing porn of actual child characters themselves and threatening artists with racist slurs and shit, the levels of projection and hypocrisy are hilariously over the top. They've been known also to harass their targets by sending them real CP, I mean real illegal photos of real brutalized children. God knows what the hell is wrong with them.