I don’t know how many times I’ve seen liberal commentators look back with nostalgia to the days when a young man fresh out of high school or military service could get a well-paying job on an assembly line at a unionized auto factory that could carry him through to a comfortable retirement.

As it happens, I grew up in Detroit and for a time lived next door to factory workers. And I know something that has eluded the liberal nostalgiacs. Which is that people hated those jobs.