The vilification of Southern culture in the North began before the War Between the States of course, and you can debate when it began in earnest. Since the end of the war, the hostility between Northerner and Southerner continued, waxing and waning in public, always simmering beneath the surface in private.
Antebellum Southern political culture was closer to Jeffersonian ideals of decentralized government and free market principles than in other areas of the country.
The memory of the people as sovereign, the state as servant was and is an existential threat to Statism, whether it is the National state of Lincoln, the Progressive State of FDR, LBJ, and BHO, new world order collectivism, or the large totalitarian states.
The proactive self-reliant individual citizen of a Constitutional republic is the antithesis of the obedient fear controlled citizen of a militarized Empire.
So Statists, particularly of the Progressive stripe, have targeted Southern culture and Southern ideals for vilification and marginalization.
They have been particularly successful in this Kulturkampf in the last 50 years.
Take the example of how "official" North Carolina has decided to observe the 150th anniversary of the War Between the States, and how the state observed the 100th anniversary, in 1961.
RALEIGH, N.C. — Fifty years ago, North Carolina celebrated the Civil War centennial with a two-day Confederate Festival managed by a state-supported commission. On Friday, the state will mark the 150th anniversary of secession not with a party but with a symposium on how Americans remember the war.
“It will be thoughtful and reflective,” said Mike Hill of the N.C. Office of Archives and History. “We reject celebration. And we believe the 1960s event was more celebratory than commemorative. (emphasis added)
The weekend events include a re-enactment of the secession vote, period music and a drill and dress parade. But the 1961 Confederate Festival included a reception at the Governor’s Mansion; theatrical productions at Memorial Auditorium re-creating war-era plays; a parade with floats; and a ball at Reynolds Coliseum that mimicked debutante balls with 40 Confederate belles.
Fifty years later, the state has provided no extra funds for the sesquicentennial celebration. Instead, the Office of Archives and History is paying for events with existing money.
And Friday’s symposium, titled “Contested Past: Memories and Legacies of Civil War,” is the first of three parts of North Carolina’s anniversary observance.
The state has divided its commemoration into three parts: Memory, which begins Friday at N.C. Museum of History; Freedom, beginning in 2013 to coincide with the anniversary of the Emancipation Proclamation; and Sacrifice, in 2015, to mark the fall of Fort Fisher, Wilmington and Raleigh and the negotiated surrender signed at Bennett Place in Durham.
Southern patriots should celebrate the good in Confederate history, and learn from the bad, but yes, celebrate, not just commemorate the achievements and goals of the volunteer private soldiers in the Confederate States Army: They fought for self-determination and freedom from domination of a remote oligarchy, just as their great grandparents did in the Revolution.