As I'm writing this, some whites are disillusioned with blacks who've paid toward murderer Karmelo Anthony... and have retaliated by shifting money to some blonde racist Shiloh something-or-other. The father of that kid who got stabbed, meanwhile, hasn't gotten anything but contempt. Also Mississippi has been distancing itself from the Northern Virginia flag, you know which one. So I figure: let's look at how we got here.
The Archaeology roundup, which Jessica Saraceni used to run, has pointed to a mass murder in Kentucky. As of January 1865, ol' Dixie could count on another four years of President Lincoln and a more-radical Congress just elected. The Confederate States weren't winning the war and everyone knew it. The article claims Kentucky was "neutral" but if so, that neutrality is to be read as Sihanouk's during South Vietnam's later struggle to exist. The CSA's army had earlier invaded Kentucky ensuring that nonCSA State's angry politicians, by 1865, would allow USA bases in its territory. Which included free black Union soldiers. Did anyone ask the Kentuck farmers? LOL.
Adding to the ugliness of that January was Sherman's March the month before, through Georgia. Atlanta had already been ruralised, as defeated cities are. Following that election, it was Union policy that the CSA had no civilians. If a city supported the CSA, it deserved fire. Sherman delivered that fire from Atlanta to Savannah.
It was hard for Dixie sympathisers that year to deny the Union that to the extent the CSA ever existed, it was dead. The North Virginia Flag, however, was spreading north. Rural Southerners knew that a Reconstruction was coming. They shifted to what Spaniards called the "guerrilla" - to terror. "Redemption", they'd call it.
This mass murder in Kentucky was an initial blow, to thin out the troops which Southerners predicted would be enforcing the coming Reconstruction. And I suspect black soldiers remembered this atrocity; or, if not this one, then just a general atmosphere in all the "prostrate states" where their soldiers were subject to getting picked-off. They would enact some brutal retaliations for instance in Galveston, once Texas ran out of cash and surrendered.