The states collectively and severally created the FEDERAL government - not the other way around. Their decisions were unilateral - devoid of coercion.
As parties to the compact that created the federal government, the states are the final arbiter of decisions with respect to federal relations - NOT the federal Supreme Court, Legislature or Executive.
The legislature and executive have had laws and orders overturned by the courts, and decisions of the Supreme Court have been overturned by the people of the several states via Constitutional amendment 4 times in our history.