There’s a chant that has rattled through some college arenas that’s staining the rafters when BYU rolls into town. The phrase is crude. It’s unmistakable. And it targets an entire religion and faith tradition by name. You know the one: “(Expletive) the Mormons.” It’s happened during football games at USC, Oregon, Colorado and Cincinnati. Last year, it happened at the McKale Center in Tucson, Arizona — where BYU returns Wednesday for a college basketball game against the Arizona Wildcats. These fans aren’t railing against a missed call, a coaching decision, or mocking a player they judge as overrated. They’re defaming...