What South? The South of 50 years ago or 150 years ago isn't the South of today. And the South of 50 or 150 years from now will be different from today's South.
... with the attitude of somehow “knowing better” and a holier than thou self aggrandizing ivy league arrogance.
Northern Republicans aren't so ivy league as they once were. Plenty of Southern Republicans are. Splits in the GOP are as much ideological or religious or class-based as regional.
Mr. Trump would not have won the South, were it not for Southerners of the legacy of Jesse Helms and yes, Richard Russell. (not, however LBJ/CLinton).
Except Johnson and Russell were great friends. Recognize that LBJ was as much a part of the legacy of the Democratic South as the segregationists who opposed him. Come to think of it, he might not be the worst of the bunch.
No, the heart and soul of Republicans from Day One until today has always been rural, small town & suburban, small business, traditional Christian, patriotic, pro-military & law enforcement, conservative, small government.
And people like that are pretty much the same, North, East, West and South.
Sure, some of us have been pretty well educated, but Democrats have always claimed the highest posts in academia.
For a historical example, think of Democrat President Woodrow Wilson, former President of Princeton University!
So John S Mosby's claim that Northern Republicans don't "get" the South is absurd because in most ways we're the same kind of people, and decidedly different from your typical Democrats.
Of course, ex-Dixiecrats who'd like to be Republicans without having to give up their pro-Confederate Lost Causer mythology... sorry, not so much we can do for you folks.