There is also a world of difference on how each defines liberty. The northerners see it as residing with the community governing itself though civic participation. granting an individual the chance to prove himself through merit. They see it as a duty to pay taxes, tithe to churches, invest in hospitals and schools, all of which empowers an individual to reach their potential through a hand up. The southerners see liberty as their rightful place in the social hierarchy, their liberty meaning they had the right to impose upon, or eliminate altogether, lower-class liberties. This of course places them outside any laws that demand equal treatment, since divine law is a higher order than that of humanity. Their wealth was instead used for lavish mansions, fine attire and social galas. And of course, literally owning other human beings.
Update: voter purges and ID laws are rampant and initiated by whom in every single instance? Republicans. Here's an article on how the new PA voter ID law could disenfranchise up to 10% of its population, no surprise mostly registered Democrats. And all due to about 13 credible cases of individual voter fraud between between 2000 and 2010.