"What "nationwide constitution right" is that? The Bill of Rights, including the Second Amendment, was enacted to constrain the powers of the federal government and did not apply to the states. "
With all due respect, no state has the right to violate any provision of the U.S. Constitution. The U.S. Constitution and the Bill of Rights were ratified by the States in order to form a Union. The Constitution and the Bill of Rights are binding upon all states and no state may make any law which countermands any provision of the Constitution or any of its Amendments.
If you can cite legislative or case law to the opposite, I will politely relent.
When SCOTUS rules against a state, it is very often ruling based upon that state violating a provision of the U.S. Constitution or one of its Amendments. If that were not true, the Supreme Court would have no power over any state, as only state laws would be applicable to states. If that were true, the Supreme Court could only rule against the Federal Government.