Interesting Hypothesis on the Red Blue Divide

NYT:  Why Are States So Red and Blue - Stephen Pinker

"The historian David Hackett Fischer traces the divide back to the British settlers of colonial America. The North was largely settled by English farmers, the inland South by Scots-Irish herders.  Anthropologists have long noted that societies that herd livestock in rugged terrain tend to develop a “culture of honor.” Since their wealth has feet and can be stolen in an eye blink, they are forced to deter rustlers by cultivating a hair-trigger for violent retaliation against any trespass or insult that probes their resolve. Farmers can afford to be less belligerent because it is harder to steal their land out from under them, particularly in territories within the reach of law enforcement. As the settlers moved westward, they took their respective cultures with them."