Massive inequality, we have learned, isn't the best way to run an economy after all. And when you think about it, it's also profoundly ugly.
When done right - or wrong, depending on how you look at it - deficits remove liberal options from the table. Suddenly there's no money for building bridges or inspecting meat. Not surprisingly, running up a deficit is a strategy favored by the wrecking crew for its liberal-killing properties.
Republicans run the machine when it's their turn, and then hand the wheel over to Democrats when the public has had enough.