Supreme Court nominee Amy Coney Barrett is in the grip of “dogmas.” So goes a criticism made by, ironically, the most dogmatic of people. In fact, the gripe reflects a certain dogma-born prejudice. Oh, I don’t speak of the anti-Catholic, anti-“religious,” anti-pro-life and anti-conservative varieties, though they’re also present. Nor do I refer to how a Muslim nominee would never be subjected to such scorn. Rather, the prejudice here is seldom recognized and something even good people may exhibit. “The dogma lives loudly in you,” Senator Dianne Feinstein (D-Calif.) told Barrett in 2017 during the latter’s nomination hearing for the...