Hmm …

… Immigration: An Exchange | Peter J. Leithart and Matthew Schmitz | First Things. (Hat tip, Dave Lull.)

I believe that the regular, casual derogation of working-class citizens in the developed world has frayed our bonds of solidarity. It has served to justify an economic order that benefits those at the top and the bottom far more than those in the middle (see Branko Milanovic’s elephant chart). Political upheaval has been the predictable result.

This seems correct to me.