
"Caplan argues that voters continually elect politicians who either share their biases or else pretend to, resulting in bad policies winning again and again by popular demand. Calling into question our most basic assumptions about American politics, Caplan contends that democracy fails precisely because it does what voters want. Through an analysis of American's voting behavior and opinions on a range of economic issues, he makes the case that noneconomists suffer from four prevailing biases: they underestimate the wisdom of the market mechanism, distrust foreigners, undervalue the benefits of conserving labor, and pessimistically believe the economy is going from bad to worse. Caplan lays out several ways to make democratic government work better.
I think we're deluding ourselves if we think we can give people critical thinking and not have them question the consequences of colonialism, or slavery, or the industrial revolution, or manifest destiny, or homeland security, and which of those consequences should be kept and which should be torn down.
(There's a pretty good book on this subject, actually: among other things it touches on, The Myth of the Rational Voter [2007, Bryan Caplan] notes the stark difference in voting habits among those with and without a college education. Does that mean all college education includes indoctrination, or does it mean learning critical thinking causes people to think critically to similar conclusions, or perhaps both? And at another level of abstraction: if you're a policymaker and you want people to vote in the way they tend to do when not college educated, aren't there incentives to cast education itself into doubt?)
I'm not so sure about that, there's a good argument that many folk get exhausted trying to resolve all the political calculus (while still living their lives and dealing with everyday problems) and just give up. Bryan Caplan called this 'rational irrationality' in his book 'The Myth of the Rational Voter' and I found his argument quite persuasive. Also look into Alistair Smith/Bruce Bueno de Mesquita's The Logic of Political Survival and their notion of 'selectorate theory'.