Douglas Todd: What if populists have a point?

What if populists aren’t as crazy as their opponents often say?
Populism is today’s hot topic. It’s the term many use to try to explain — and deride — right-wingers like U.S. President Donald Trump, as well as nativist parties in Europe. Others remind us that populism applies as well to the socialist left, like U.S. presidential hopeful Bernie Sanders.
The trouble is that too many commentators use the term populist so loosely that, instead of providing insight, they