“Why I cannot imagine what segregationists were thinking not wanting to share such joy”
I think Democrat enforced segregation caused the problem.
Without the government enforced fiat decent people of any background, law abiding, God fearing family oriented would have naturally gravitated together and allied.
Democrat dictatorship forced association based on race not shared values.
This can’t be blamed on the Old South Democrats. The Republicans ran the corrupt “Reconstruction” and it’s wholesale theft and murder. As Jube Early sarcastically stated, “What a gentle institution slavery must have been to so well prepare the Negro for the ballot box.”
Black culture has the same problems the world over status of whatever stripe only make it worse