As long as this kind of thing stays on the state level, no problem.
You'll say that until it comes to your state.
Isn't that what "states rights" is all about? A state denying a suicidal whackadoo the ability to get a gun is not a violation of the Second Amendment. So it is win/win as long as this stays on the state level.
Whether it stays at the state level or not, it will be ruled unconstitutional by the Supreme Court.
And, no that is not what "states rights" is all about. States rights revolves around the fact that states are soverign, and the federal government exists to provide unity to the fifty states.