Sales tax seems like it's just obsolete (and it's regressive, to boot). They should just make up any shortfall via property tax or income tax, rather than clinging to this thing they can no longer control.
Or they can waste less money and stop stealing from me at gunpoint.
It fascinates me how those isn't even an option in some people's minds.
Or you can always move to a state that already agreed with you and tries to minimize your tax burden.