I came across this article:
Indeed, such attempts to root Northerners, particularly those from the Northeast, and Southerners in antagonistic bloodlines went back at least as far as 1837, when another anonymous writer in The Messenger wrote, “We, too, of the South, and especially we of Virginia, are descendants, for the most part, of the old cavaliers — the enemies and persecutors of those old puritans — and entertain, perhaps, unwittingly something of an hereditary and historical antipathy against the children, for the fathers’ sake.”
It seems many southerners (and northerners) prior to the civil war believed themselves to be the descendents of the Normans (and Anglo-Saxons, respectively). Here’s an 1846 journal article from a J. Quitman Moore in DeBow’s Review arguing the Norman heritage of Dixie.
I can’t find anything on how factual this myth of Norman heritage is, but according to Jayman the Cavaliers believed themselves to be descended from the Normans. But if it is genetic fact it is interesting.
The Normans were Catholic Vikings who had settled Northern France, while the Anglo-Saxons were Germanics who displaced the original Celtic Britons. Interestingly, given the later alliance of the Cavaliers and Scots-Irish in both the English and American civil wars, the Irish and Scots were also invaded and ruled by the Normans who became “more Irish than the Irish themselves” and were eventually integrated. The Norman’s were, being vikings, a rather violent people.
It is possible the roots of modern political differences are genetic in origin, extending past the American civil war, before the Glorious revolution, and back the conflict between the Norse Normans and the Teutonic Anglo-Saxons. Even more speculatively, could this go deeper to a genetic legacy from the split of the Germanic peoples or even the corded ware/battle axe culture era.
Now, I’m no expert in this area and from my understanding, nobody really knows for sure, this is all speculative but the possibility is interesting to think about. Maybe someone like HBD Chick could give this a closer look.