omg
you are sooooo naïve
and my state is broke
Without naivete nothing would ever get done. Anyways your state shouldn't be broke. It can raise property taxes, corporate taxes, income taxes, luxury taxes, fees, fines etc. It can outsource, make promises, sell bonds, request donations, put tolls on things, seize properties for the public good. All it has to do is figure out what people were paying the IRS and tax them itself, instead; then pass that on to the federal government. Instantly the state government becomes relevant again.
This would never work. The Feds would use Federal troops on us to get their money.
If the states simply stopped cooperating, yes; but if they got together and changed the constitution no. They can do that. It requires a high percentage of states voting, but they can amend the constitution without any of the 3 branches of the federal government telling them otherwise. I think its called a convention of states. The danger, of course, is that such a convention might do something stupid; but simply shifting the tax collection to state control would not be crazy.