The feds should be limited to tariffs and perhaps a flat % tax on state budgets.
And property/income taxes need to be banned at all levels.
What happens to the services that will no longer be funded? Like schools for example?
A friend of mine said recently she was thinking of moving to Florida because they have no state income tax. I pointed out that is false reasoning as Florida has expenses just like every other state. The money has to come for someplace. In Florida's case, they tax the tourist industry, something they have a lot of in Florida. In theory, Florida residents don't feel this tax 'cause they don't pay it.
My Brother, who lives in Florida, mentioned recently that the China virus has just killed the Florida tourist industry and the state has been busy figuring out where the needed money is going to come from.
States, like all of us, have expenses. And the states get what they need for one source or another.