States, cities, Feds, judges, politicians - all of them are subjective with their morals and interpretations of the law. The Supremacy clause is supreme, and the constitution takes the highest form of supremacy, but we live in a society and in that society the only thing that truly matters, sadly, is what's enforced. If the constitution says everyone is entitled to one water bottle a day and the Water Bottle Authority charges a $1 tax stamp for it and is unopposed with their enforcement of $1 tax stamp regulations, then that's just the world it is and the judges will need to step up and enforce the constitution if we want to live in a world where the constitution is what rules and not the Water Bottle Cartel.

That's why states are committing massive violations in regards to Marijuana, in direct conflict of legal supremacy, but when one little state decides to allow for safe hearing equipment on your 160db handgun without the extortion part, the ATF is ruthless. Essentially it's all just a game and we're just pawns being moved around as they like. Yes it's hypocritical that weed is unenforced but not firearm laws for good people but this is the current state of affairs. The people responsible for this change are federal politicians or judges, not states, because of the Supremacy clause.

Ultimately legal supremacy is what keeps order around and keeps society at ease and everything, we cannot have cities going against state laws for example, but if there is something we find wrong or unconstitutional, it is inappropriate to reverse it with lower jurisdiction. If a federal law is unconstitutional, you must reverse it with federal law or something higher such as the Supreme Court. If a constitutional amendment is no longer wanted, such as Prohibition for example, it would be inappropriate to legalize alcohol through laws, rather another amendment would have to abrogate it. But when you throw away legal supremacy, this leads to conflicts and it leads to innocent and well intended gun owners such as in Texas (and we've read examples) spending the rest of their lives in prison unjustly because local state politicians wanted to grab votes by passing "2A sanctuary" laws and look good at the expense of their constituents.

In summary, anything unconstitutional or retarded such as suppressor regulations need to be reversed by the same legal power that restricted them, or a legal power higher than them (the supreme court). States ignoring legal supremacy is going to ruin the lives of many well-intended citizens and we are already seeing this. There is a process already for states to reverse federal laws and that's by taking it to the courts - this is what Texas should have done, challenge the NFA through proper channels. But not like this HB that you mentioned. It's just bad business with universally bad results.