Terminal stage treatbrain: "Anyone that ever, ever makes me feel bad about anything done by my predecessors is actually a bad person. I am the Main Character. Me." 
Are these bazinga nazis doing things that much better in the present, or are they seeking to "coup whoever they want, deal with it" as usual? 
"left behind" is a little vague but there's half-issues that affect women less because of historical sexism like workplace safety and stopped clock situations like education outcomes. Nobody was invested in keeping me in college or is interested in helping me go back and there is stone nothing for people at the intersection of whatever the fuck happened to me.
Certainly mens' liberation discourse is decades behind the rest of feminism, but that one at least is on men and people society treats as men to sort out. we have a bit of a free start with the "patriarchy hurts men too" writings if more of us would engage with it on that basis.
No arguments with you there.
My take is that "patriarchy don't real because me and mine feel disadvantaged, where are my patriarchy perks" plays into chud hands while "patriarchy fucks men over too and men on top of it receive most of the benefits apart from the privilege of punching down" has more legs.