Isn't strident opposition to "neo-Marxist philosophy" actually highly correlated with weird/reactionary ethno-nationalism?
That’s a trope by Marxists to attempt to normalize alt-left ideology by accusing anyone who objects of being Nazis; a trope that’s become tired in the US and minimizes the true radical nature of the Nazi regime.
I have a suspicion you don't really know what Marxism is about, but like using it because it sounds scary to you.