The south was truly demobilized, and Lincoln, not with his own faults, was trying to make some amends. Unfortunately, he was assassinated. And due to how the rules were written then the VP, his successor, was his political opponent. Who rolled back almost every law he passed. In hindsight the US election system saw the bug in their system, but it was still too late.
> Otherwise you would have seen an insurgency worse than the Klansman.
Klansmen didn't gain much influence until 50 years later when they had captured the imagination of a certain US President.
> crimes of few at the top of the pyramid.
Okay, we're going to have to debunk this again. Slavery was bad and a lot of southern white people were involved to keep that system in place. A majority owned, controlled, or rented the enslaved. So it was not a few who benefitted slavery, there weren't a few Germans in the Nazi party, and there weren't a couple of French who supported the Vichy regime while everyone else was in the resistance.