But let's put to rest the irritation over bring up Marx.
The author of the OP op-ed is Chris Hedges.
He is also the author of Karl Marx Was Right.
Thus his old-school criticism of post-modern neo-Marxism that sees the alts alike in fighting the oppression of capitalism.
Tradition is not the worship of ashes, but the preservation of fire. ― Gustav Mahler
I don't know how Anti-fa views things. That's the problem with this. I know what the KKK and White Supremacists and Neo-Nazi's believe. i don't what the Ant-fa believe, if anything.
On the face of it, they are nominally against fascism. But that's puzzling because, as you identify, the only alt-right political group are the neo-Nazis, not neo-Fascists. Their roots are European so who knows.
The other alt-right groups are political in terms of identity groups, namely pro-white, and Antifa is against them and, generally, for blacks...and other identity groups. So the both play identity politics. And that's what the Marxist OP article author criticises, that instead of playing post-modern neo-Marxist politics, they, at least Antifa, should return to the old Marxist fight against oppression. The problem, though, as that author recognizes, the alt-right is oppressed by the same system, capitalism, or coporate capitalism, or whatever he calls it.
Antifa are generally communists and socialists who are anti-government and anti-capitalism. Just as opressed by capitalism, the alt-right tends to be anti-government, and I have read many places where their demands are for social programs like healthcare and welfare. It has been a theme of mine across many threads to point out all these similarities.
Imagine if you will a political continuum from left to right. Now take up the two extremist ends on the left and the right, and bring them up and around to meet, forming a political circle, the two alts at the top--the linatic fringe, the let and right each side, and the bottom classical liberalism, libertarianism.
Tradition is not the worship of ashes, but the preservation of fire. ― Gustav Mahler