The context to this is saying about how they're not a fan of the subreddit LeftWingMaleAdvocates, which is a bad subreddit, it's mostly just anti-feminist and basically just MRA, but they just call themselves left-wing. Most of their "left-wing" stuff is actually just "classical liberal" talking points, so they are bad, but calling them tankie is ridiculous.
This is a regular discussion in the free talk and mental health threads of Menslib. Unfortunately, the sub doesn't really go hard into solutions, but it does at least talk about this. It's not organization or theory, but it can at least feel good for anyone who feels hurt by that kind of rhetoric.
MensLib is a pretty good sub, although it's full of shitlibs.
Yeah, I mostly just go there for the mental health and free talk threads, because it's basically the only subreddit in which I can talk about my mental problems (which, if I'm going to be honest, heavily involve dating) without either:
A) Being attempted to be indoctrinated into some red or black pill shit, or given a bunch of weird evolutionary psychology/Jordan Peterson shit about "the way women are".
Or B) Have a whole lot of things be projected onto me, being told that I'm basically an incel, or that I'm sad about this because I don't see women as people, etc.