I'm a Marxian leftist, but the one time I tried reading his essay I found it incomprehensible, ramblings of an ill person. It could've been about any topic, the style was redundant overconfident rambling.
So, I never cared for the overanalysis of this, the media obsession and spectacle is pretending he had anything comprehensible to say at all.
I.e., his ideas resonate for people who have not actually read leftist writing. Or maybe they resonate for accelerationists, tankies, and the like.