The problem is that to keep populations in those states (and keep the government caste - teachers, cops, politicians) working, federal programs (Section 8, food stamps/SNAP, SS disability, etc.) are used to take wealth from other states’ taxpayers and funnel them into the dying socialist utopias...
and that problem is solved by retaining the control of the purse at state levels, not federal.
In no manner shape or form should a state be required to subsidize another state that makes bad choices.
Let that state with bad choices die a slow death.