The states of the Old Confederacy are hardly unique in that elements of their historical heritage involve discreditable treatment of African-Americans. But they do seem unusual in their insistence on celebratingintegral to a proper understanding of their local identity. Even odder, as best I can tell these days (it was different in the past) most of the folks who like to wave the Confederate flag are perfectly genuine when they get offended that others see them as waving a banner of violent white supremacist ideology. But if that's not the ideology you mean to associate with, then why not drop the flag and adopt some less provocative emblem of Southern folkways?
I've never understood that myself.