I can well remember federal forces converging in the South to enforce civil rights mandates. The Constitution obviously applied to state and local governments then, to say that it doesn’t apply now flies in the face of all reason!
George Wallace a sitting Governor threatened with arrest?
Eisenhower Federalizing the National Guard in Arkansas.
Voting Rights acts that only applied to Southern states.
Why stop now?
“I can well remember federal forces converging in the South to enforce civil rights mandates.”
Actually, the federals came to enforce their sovereignty against rebel usurpers. It wasn’t about anyone’s civil rights until at least two years in. And even that was more about strategy and PR. The real civil rights reckoning came in the usual Constitutional way, with the 13th, 14th, and 15th amendments.