These moral systems aren’t ignorant or backward. Haidt argues that they’re common in history and across the globe because they fit human nature. He compares them to cuisines. We acquire morality the same way we acquire food preferences: we start with what we’re given. If it tastes good, we stick with it. If it doesn’t, we reject it. People accept God, authority and karma because these ideas suit their moral taste buds. Haidt points to research showing that people punish cheaters, accept many hierarchies and don’t support equal distribution of benefits when contributions are unequal.
You don’t have to go abroad to see these ideas. You can find them in the Republican Party. Social conservatives see welfare and feminism as threats to responsibility and family stability. The Tea Party hates redistribution because it interferes with letting people reap what they earn. Faith, patriotism, valor, chastity, law and order — these Republican themes touch all six moral foundations, whereas Democrats, in Haidt’s analysis, focus almost entirely on care and fighting oppression. This is Haidt’s startling message to the left: When it comes to morality, conservatives are more broad-minded than liberals. They serve a more varied diet.
This is where Haidt diverges from other psychologists who have analyzed the left’s electoral failures. The usual argument of these psycho-*pundits is that conservative politicians manipulate voters’ neural roots — playing on our craving for authority, for example — to trick people into voting against their interests. But Haidt treats electoral success as a kind of evolutionary fitness test. He figures that if voters like Republican messages, there’s something in Republican messages worth liking. He chides psychologists who try to “explain away” conservatism, treating it as a pathology. Conservatism thrives because it fits how people think, and that’s what validates it. Workers who vote Republican aren’t fools. In Haidt’s words, they’re “voting for their moral interests.”