Can you be against affordability? As with “crime,” it’s tough to stake out a contrary position; the word’s too modest and common-sensical, redolent of an era when political ads depicted median suburbanites at kitchen tables frowning over checkbooks. Trump is right to call it new, though. A phrase like “affordable housing” would not have made those suburbanites think hopefully about their own mortgages; it would have made them picture low-income units denting their property values. “Affordability” was about somebody else’s problems.