Here's my alternative definition: morality is any system of interlocking values, practices, institutions, and psychological mechanisms that work together to suppress or regulate selfishness and make social life possible. It turns out that human societies have found several radically different approaches to suppressing selfishness, two of which are most relevant for understanding what Democrats don't understand about morality.

In The Political Brain, Drew Westen points out that the Republicans have become the party of the sacred, appropriating not just the issues of God, faith, and religion, but also the sacred symbols of the nation such as the Flag and the military. The Democrats, in the process, have become the party of the profane—of secular life and material interests. Democrats often seem to think of voters as consumers; they rely on polls to choose a set of policy positions that will convince 51% of the electorate to buy. Most Democrats don't understand that politics is more like religion than it is like shopping.

The ingroup/loyalty foundation supports virtues of patriotism and self-sacrifice that can lead to dangerous nationalism, but in moderate doses a sense that "we are all one" is a recipe for high social capital and civic well-being. A recent study by Robert Putnam (titled E Pluribus Unum) found that ethnic diversity increases anomie and social isolation by decreasing people's sense of belonging to a shared community. Democrats should think carefully, therefore, about why they celebrate diversity. If the purpose of diversity programs is to fight racism and discrimination (worthy goals based on fairness concerns), then these goals might be better served by encouraging assimilation and a sense of shared identity.