So not only must Harrison invent a tradition or culture that is do all this exlanatory work, he must then imply that it is passed on as if each generation were nothing but a vessel for the transmission thereof. It's not hard heredity, it's hard culturalism: Culture is no less destiny than race was held to be.
He then feebly grants: "It's true cultures change, sometimes dramatically." But the inertial force with which he invests his invented culture makes this most interesting aspect of the human condition a mere after thought.
By the way, the latest *Telos* has an article by Benoist on "WHat is Racism?" Haven't read it. There is also a probing discussion of the transition from hard racism to hard culturalism, as I am terming it here, in Richard M Lerner's Final Solutions: Biology, Prejudice, and Genocide.
yours, rakesh