I did a little experiment earlier today.
I like to give people the benefit of the doubt, so even though it's pretty safe to say that the "Men's Rights" movement has more to do with harassing women, I'd like to think they were doing something at all about issues that primarily impact men. PREA (the Prison Rape Elimination Act) has been in the news a lot lately because some states are refusing to comply. "Hey," I thought to myself, "these guys are always complaining about the disproportionate incarceration of men and about a purported lack of attention to the needs of male rape victims, so they should be all over it if they're actually looking to improve things for men, rather than blame women for everything." So I did a little experiment.
I googled "PREA and men" and I looked at ten pages of results. I saw left-leaning news organizations, prison reform groups, civil liberties organizations, LGBT and trans organizations, states and municipalities explaining their PREA compliance or lack thereof, even feminist blogs talking about this important anti-rape effort. What I did not see were ANY manosphere blogs commenting on the issue. At all. And I got far enough back into the results that I was looking at some pretty low traffic websites, so I think it's a safe bet that I wasn't missing some big discussion about it.
http://lmgtfy.com/?q=PREA+men
If anybody wants to double check my work, feel free.
But I think we can officially, finally and definitively call bullshit on the notion that the manosphere is working for men rather than against women.