Bigotry is one of the oldest and ugliest of trends, so persistent it only counts as a fad because the target keeps changing: Huguenots, Koreans, homosexuals, Muslims, Tutsis, Jews, Quakers, wolves, Serbs, Salem housewives. Nearly every group, so long as it's small and different, has had a turn, and the pattern never changes--disapproval, isolation, demonization, persecution. Which was one of the reasons it'd be nice to find the switch that turned fads on. I'd like to turn that one off for good.