I would argue that Lyndon B. Johnson's Great Society progrms have inflicted far more damage and harm to the United States than the Civil War ever did.
"The rampant discrimination of the past is long gone."
Hardly. The Welfare and Entitlement programs LBJ passed are more egregious and harmful to blacks today than the Civil War ever was.
660,000 Americans died as a result of The Civil War. How many died as a result of The Great Society?