This is a terrible idea and one that used to be confined exclusively to right wingnut circles. The left is catching up, I see.
Honestly I’m trying to think of what the downside to this could be. Perhaps it should require affirmative votes in two consecutive referenda spaced a couple years apart.
The inevitable denial of basic rights to marginalized groups in those states by bigoted governments that would no longer face any federal oversight?
Some states in the deep south would probably straight up bring back Jim Crow if they could get away with it. Guess the blacks down there aren't the black lives that matter.