This is what I immediately thought of, too, when I saw the comment earlier. This speech comes from the former VP of the Confederacy under Jeff Davis and delivered just before the onset of the Civil War. States rights, growing economic disparities between agrarian and manufacturing industries and a brave new world of even more interconnected geopolitical influences also were huge issues at the time (albeit, most of which were also tied to the question of slavery) but to suggest the threat of losing its "peculiar institution" -- the Culture War of that time -- wasn't the core reason in favor of secession is a hard one to swallow. Here is the oft quoted line from the speech: "Its foundations are laid, its cornerstone rests upon the great truth, that the negro is not equal to the white man; that slavery—subordination to the superior race—is his natural and normal condition. This, our new government, is the first, in the history of the world, based upon this great physical, philosophical, and moral truth.