South Carolina, the state that article concentrates on, was actually a more violent state towards its slaves. The farther south you got, the more violently they treated their slaves. Had to, because conditions got worse as you got further south, and in South Carolina you were very frequently dealing with swamps and yellow fever and all that. So one wonders what it meant to treat a slave well there.

That for nearly three hundred years of which I am aware, it has produced a disproportionate number of belligerent, megalomaniacal crazies. Often, the culture of a society is driven by a few people, whose powerful personalities set the tone, often for generations.

It is also odd because at one point, colonial South Carolina reportedly had one of the most open policies regarding practice of religion (amongst whites), partly due to the difficulty of attracting immigrants.

There were, back in slave days, more blacks than whites, and this contributed to the violence with which slavery was maintained in South Carolina. They grew rice and indigo in those swamps; cotton was not king in that state. It was highly labor-intensive, so you needed a lot of slaves.
Not sure if that has anything to do with what you're talking about, but I wouldn't be surprised if it did.

Also interesting that much of black slavery was - as I uunderstand - for rice production in swampy areas. Slaves from equatorial Africa were not vulnerable to malaria as Caucasian immigrants.

problem will soon atrophy and go away

2 - prosecute criminal bankers.
3 - Make the trials of both mandatory on television so people can learn just how corrupt this country has become.

These actions would send the clear signal that there are no elites, no one is above the law and purposeful ignorance and criminality are not acceptable in our great country.

I have always thought that there was no sense of shame over the times/events of slavery;

That there was no sense of wrongness over the failure to provide basic civil rights - post slavery;

There was only a sense of pride - about being wrong;

Maybe the lack of an education or the failure to address the mis-education,
the religious institutions and their teachings (mark of Cain),
a history and society that defined people by the color of their skin,
a culture that take pride in what they are today is because of what they were yesterday,
the idea that what their relatives fought and died for - had some value...

in general terms.