Tribalism and Religion
Tribal cohesion was essential to survival, and our first religions emerged for precisely this purpose. As Dominic Johnson argues in his recent book “God Is Watching You,” almost all indigenous societies had a common concept of the supernatural, and almost all of them saw their worst threats — hunger, disease, natural disasters, a loss in battle — because of disobeying a god. Religion therefore fused with communal identity and purpose, it was integral to keeping the enterprise afloat, and the idea of people within a tribe believing in different gods was incomprehensible. Such heretics would be killed. (Sullivan, 2017)
The result of all this is that a lopsided 69% of white Christians now vote Republican, while the Democrats get only 31%. In the last decade, the gap in Christian identification between Democrats and Republicans has increased by 50 percent. In 2004, 44 percent of Latinos voted Republican for president; in 2016, 29 percent did. Forty-three percent of Asian-Americans voted Republican in 2004; in 2016, 29 percent did. Since 2004, the most populous urban counties have also swung decisively toward the Democrats, in both blue and red states, while rural counties have shifted sharply to the GOP. (Sullivan, 2017)