[central_va]

The organising principle of Southern society was the natural superiority of the white race over the black race.

Slavery was immoral true but slavery was legal in ALL states North and South in the 18th, early 19th century. Racism didn't end above the Mason-Dixon, Lincoln himself was a racist to the nth degree. That is fact.

[AceMineral]

True, but the central idea around which Southern society organized itself was white supremacy. The Northern society did not organize themselves so. They were racists, but the sine qua non of their society was not white supremacy.