It’s a puzzle: one dispossessed group after another — blacks, women, Hispanics and gays — has been gradually accepted in the United States, granted equal rights and brought into the mainstream.
At the same time, in economic terms, the United States has gone from being a comparatively egalitarian society to one of the most unequal democracies in the world.
The two shifts are each huge and hugely important: one shows a steady march toward democratic inclusion, the other toward a tolerance of economic stratification that would have been unthinkable a generation ago.
It’s a surprising contradiction. Is the confluence of these two movements a mere historical accident? Or are the two trends related?