another from Kevin Williams at National Review, ‘Donny from Queens, You’re on the Air’
The formal term for what’s at the root of all this is “rational ignorance.” Many of you will have experienced the phenomenon of the very smart person who has very dumb ideas about politics — and who, if challenged, will immediately retreat into the vaguest of generalities, and often ends up displaying surprising ignorance about the most basic public-policy questions. These are the people who believe that you can walk into Walmart and buy a machine gun, that foreign aid represents half of federal spending, that the CIA introduced crack into inner-city neighborhoods, etc., and who tend not to know things like who their representative in Congress is or how our tax system works. Why are these smart and often very successful people so ignorant about politics? Because they’ve spent their lives getting really smart about a different subject and achieving their success in a field in which political knowledge isn’t very important. This is why Albert Einstein had such batty ideas about politics.
The fact that most people who don’t make their living thinking about politics tend not to think very much or very carefully about politics does not mean that they are not interested in politics or do not care about it. Far from it. But, as Robin Hanson reminds us, politics is not about policy. Politics is about tribe. How we align politically is based for most people almost entirely on how we wish to position ourselves socially and culturally. At the moment, our politics is marked by a kind of inverse partisanship: It isn’t that Trump partisans think the Republican party is so great — they just think those other guys are so awful that any alternative is acceptable. That’s the “But Hillary” defense, a moral get-out-of-jail-free card for right-wing talk-radio hosts and their listeners. Democrats have their own version of that, which is why they don’t argue that Republicans are wrong about tax policy or abortion but that they are racists, misogynists, homophobes, captive to corporate greed, etc. We end up with a political discourse in which both sides are, at their broadest points, heavily invested in their insistence that there is no good-faith disagreement about policy — there is only the eternal conflict between the guys in the white hats and the guys in the black hats.
This is the central concept of The Myth of the Rational Voter by Bryan Caplan