Andrew Ferguson has authored a penetrating and very funny analysis entitled "The New Phrenology" regarding Democrats tendency to denigrate conservatives from behind the pretense of science--social psychology mainly though not exclusively. That's a field absolutely stuffed with people on the margins with issues.
It is a principle of psychopunditry that the political differences between right and left—the differences, in Mooney’s scheme, between those who would fearfully deny reality and those who embrace it unafraid—originate in two personality types. As it happens, the liberal personality, as psychopunditry describes it, is a perfect representation of those traits that liberals say they most admire. Liberals are “more open, flexible, curious, nuanced.” Conservatives are “more closed, fixed, and certain in their views.” But don’t get the wrong idea: Mooney insists he is not saying “conservatives are somehow worse people than liberals.” That would be judgmental, and Science is clear: Liberals aren’t judgmental. “The groups are just different,” he goes on amiably. Indeed, he warns that the truths he reveals in his book “will discomfort both sides.” Fairness requires him to be evenhanded. On the one hand, conservatives won’t like the scientific fact that they tend to deny reality and treat their errors as dogma. On the other hand, liberals won’t like the scientific fact that all their well-meaning attempts to reason with conservatives are doomed.