it diverts attention from older and larger groups whose serious problems have been ignored. A significant part of the white American working class has been dragged into an underclass, comparable to the experience of African-Americans during the 1970s and '80s. Yet one has heard little concern from activists on the left, at least until recently, about the burgeoning opioid crisis, or the fate of children growing up in impoverished single-parent families in the rural United States.