But war always has its price. The mounting assault on norms of mutual toleration and forbearance—mostly, though not entirely, by Republicans—has eroded the soft guardrails that long protected us from the kind of partisan fight to the death that has destroyed democracies in other parts of the world.
Interesting that they attribute most of this to race and religion, and resulting status anxiety. That feels simplistic, is that really all? Is there a more rigourus view n this? Fits todays culture wars though. But in away just oils it down to a battle of demographics that are grafually changing against republicans

