It seems so, or so argues the author of The Righteous Mind. In this review of the book we find that the author repeats a point stated elsewhere. When we reason, if what we do in our brains can be called reason, we don't build conclusions after reviewing fresh evidence, we build up support for pre-existing beliefs. And we do so largely for social status:
To the question many people ask about politics — Why doesn’t the other side listen to reason? — Haidt replies: We were never designed to listen to reason. When you ask people moral questions, time their responses and scan their brains, their answers and brain activation patterns indicate that they reach conclusions quickly and produce reasons later only to justify what they’ve decided. The funniest and most painful illustrations are Haidt’s transcripts of interviews about bizarre scenarios. Is it wrong to have sex with a dead chicken? How about with your sister? Is it O.K. to defecate in a urinal? If your dog dies, why not eat it? Under interrogation, most subjects in psychology experiments agree these things are wrong. But none can explain why.
The problem isn’t that people don’t reason. They do reason. But their arguments aim to support their conclusions, not yours. Reason doesn’t work like a judge or teacher, impartially weighing evidence or guiding us to wisdom. It works more like a lawyer or press secretary, justifying our acts and judgments to others. Haidt shows, for example, how subjects relentlessly marshal arguments for the incest taboo, no matter how thoroughly an interrogator demolishes these arguments.
To explain this persistence, Haidt invokes an evolutionary hypothesis: We compete for social status, and the key advantage in this struggle is the ability to influence others. Reason, in this view, evolved to help us spin, not to help us learn. So if you want to change people’s minds, Haidt concludes, don’t appeal to their reason. Appeal to reason’s boss: the underlying moral intuitions whose conclusions reason defends.
In 2301's section on public opinion, we discuss political psychology. This topic fits it nicely.
