I agree he won’t change his tune as many Neo-Libs love his anti-post-modern diatribe and will pay him big bucks to keep it going. Now I’m no fan of Derrida but I would never call him Evil with a capital E. He sort of misses the point. Derrida was an Algerian Jew.
The first wave of Post-modernists came out of the trauma of the Holocaust and ended up at the New School or ended up in Paris left bank, trying to purge themselves of the Nazi mythic hysteria and tried to locate the sources of Totalitarianism and tear them up by the roots. It was Hannah Arendt who said the roots were not in Germany but in the American Slavery loving South where the Nazi ideology was born. I agree as most of my southern relatives talked just like Hitler. They were in some ways very conservative enclaves.
But when the post-structuralism impulse came in the 80’s to USA it happened with the backdrop Andy Warhol and shiny suburban surfaces that made a joke out of everything and that was the movement went very sour. Anything goes. Debunking meta-narratives became the meta-narrative and made them powerless to fight against the Scientism and Neo-Liberal trickle down economics. I dont sense that Peterson understands this at all. Trickle down economics is an unnecessary evil. He seems to assume Capitalism is the same thing as Democracy. Corporate take overs of public assets ( especially by foreign actors) is the great danger to democracy, not Marxist theory.
Now I have problems with Marxism, too, but not because it critiques Capitalism but because it ignores Nature. It is not just about who owns the means of production but is about how that impacts Nature. So Marxism needs to be updated, not discarded, so that an Ecological Civilization can emerge. And the Soviet Union practiced something more like bureaucratic Capitalism that utterly failed, and looks like what we are becoming. That is why Putin gets along fine with Neo-Liberalism. He owns much of the real estate of Upper East Side of Manhattan.
So we need cool heads and warm hearts to make a viable Ecological movement to happen and Jordan Peterson I fear has neither.