My take on cultural omnivorism has always been that it’s the purist form of consumerism — “give it to him, he’ll eat anything!” Especially when . . . he’ll pay for it! The weakening of the aesthetic dogmas, which your book so beautifully enacts, may have something to do with the decline of the Western empire(s). The dogmatic aesthetic “isms” arose in times of increasing political/economic hegemony. The artistic Ism-ists often conceived themselves as oppositional to the Empire, but their dogmatism enacted imperial confidence. The American Empire has been in decline since the 1970s, but Rockists could still have imperial ambitions based on generational demographic power, and the memory of having grown up in a rising empire.