Diagnosis is a pleasure. It is a thrill to solve a mystery from scattered clues, and it is empowering to know what makes others tick. In the psychological community, where almost all of us are politically liberal, our diagnosis of conservatism gives us the additional pleasure of shared righteous anger. We can explain how Republicans exploit frames, phrases, and fears to trick Americans into supporting policies (such as the "war on terror" and repeal of the "death tax") that damage the national interest for partisan advantage.
But with pleasure comes seduction, and with righteous pleasure comes seduction wearing a halo. Our diagnosis explains away Republican successes while convincing us and our fellow liberals that we hold the moral high ground. Our diagnosis tells us that we have nothing to learn from other ideologies, and it blinds us to what I think is one of the main reasons that so many Americans voted Republican over the last 30 years: they honestly prefer the Republican vision of a moral order to the one offered by Democrats. To see what Democrats have been missing, it helps to take off the halo, step back for a moment, and think about what morality really is. [...]
This research led me to two conclusions. First, when gut feelings are present, dispassionate reasoning is rare. In fact, many people struggled to fabricate harmful consequences that could justify their gut-based condemnation. I often had to correct people when they said things like "it's wrong because… um…eating dog meat would make you sick" or "it's wrong to use the flag because… um… the rags might clog the toilet." These obviously post-hoc rationalizations illustrate the philosopher David Hume's dictum that reason is "the slave of the passions, and can pretend to no other office than to serve and obey them." This is the first rule of moral psychology: feelings come first and tilt the mental playing field on which reasons and arguments compete. If people want to reach a conclusion, they can usually find a way to do so. The Democrats have historically failed to grasp this rule, choosing uninspiring and aloof candidates who thought that policy arguments were forms of persuasion. [...]
In several large internet surveys, my collaborators Jesse Graham, Brian Nosek and I have found that people who call themselves strongly liberal endorse statements related to the harm/care and fairness/reciprocity foundations, and they largely reject statements related to ingroup/loyalty, authority/respect, and purity/sanctity. People who call themselves strongly conservative, in contrast, endorse statements related to all five foundations more or less equally. (You can test yourself at www.YourMorals.org.) We think of the moral mind as being like an audio equalizer, with five slider switches for different parts of the moral spectrum. Democrats generally use a much smaller part of the spectrum than do Republicans. The resulting music may sound beautiful to other Democrats, but it sounds thin and incomplete to many of the swing voters that left the party in the 1980s, and whom the Democrats must recapture if they want to produce a lasting political realignment.