BOOK REVIEW

A recent and, even by its own lofty standards, especially hilarious and cringingly tasteless episode of South Park features the passionate and petulant schlimazel, middle-aged dad Randy Marsh, watching TV, when a commercial for a fictional consumer genetics company comes on the screen. “Wouldn’t you like to know the story of you?” the unctuous announcer asks. “What makes you you?” We then see a parade of white people doing entitled white people things — biking, painting, jogging — as they give testimonials about their DNA test results. All are thrilled to