“Strange that it may seem, Darwin plays a central role in this drama. Karl Marx himself credited Darwin with much of his basic insight into human history.”
The implication is clear: the alien monolith has somehow bequeathed to him and his little tribe a sudden quantum leap in brain power.
It is basically the denial of human exceptionalism. That is, it is hatred of man, in practically every way imaginable.
C.S. Lewis encountered an objection to his literary criticism analogous to Kevin Williamson’s and explored its underlying logic.