This idea could sure help raise public awareness about that thing called the U.S. Constitution. From Conservative HQ:
Short of seceding from the union, are there steps the states can take to counter an abusive federal government?
Declaration of IndependenceFor example, suppose a big state, such as Texas, declared itself a “tax sanctuary” — that no Texan will be required to pay an income tax of, say, more than 15 percent to the federal government.
It would cite the U.S. Constitution’s Fifth and Fourteenth Amendments for legal justification.
The Fifth Amendment states that “Nor shall private property be taken for public use without just compensation.”
This is known as the “Takings Clause.”
The Fourteenth Amendment states that the government must not “deny to any person within its jurisdiction the equal protection of the laws.“
This is known as the “Equal Protection of the Laws” clause.
The progressive income taxes violates both these Amendments.