MGTOWs have indeed recognized how society exploits their disposability and is biased against them in family courts etc. I think I said something in another comment a while ago how a lot of other men also recognize this disposability to varying degrees the difference is that MGTOWs care less about the outcomes of society while the other men still have hope that they can achieve their (more traditional) goals and/or care about contributing to society.
While it seems harder for men and women to appreciate the others' unique role (moreso women appreciating men's role), I think social media has also been a huge catalyst in pushing people into increasingly polarized positions.
With the right wing militia groups, I'm not necessarily seeing how they are motivated by the breakdown of male-female relationships, rather I'm seeing a reaction to the rise of the extreme left. But you might be seeing something else.
Regardless, yes, we (society) needs to look at improving things for both sexes, not feeling the need to push one down in order to lift the other up. I am baffled by the people who cheer enthusiastically when they hear or see "the future is female." I don't think their daughters will thank them for not investing anything into young men's development in 10-15 years.. I want to ask all of them: what kind of partner do you want for your daughter? If they have sons, I'm even more confused. Like, someone call social services.