Its been done before, it has failed before and those that believed their State, City or County officials can over ride Federal Laws are either in jail or convicted felons that have lost their Second Amendment rights.
Supremacy Clause, look it up.
While you are at it look up the Kansas Second Amendment Protection Act and a couple guys named Shane Cox and Jeremy Kettler, that got their asses thrown under the bus my the Kansas Governor and State Legislators.
You can't just claim "Supremacy Clause". We're talking about not just ignoring the Constitution, but attempting to discard parts of it, at least, so you can't cite a part of that same law and claim it justifies treason.
The thing that people don't want to seem to grasp is that there is only one remedy left when the government attempts to destroy rights in a treasonous fashion. Passing more laws won't make anyone suddenly obey the laws they are currently subverting.
If people are demanding their removal from the planet for heinous crimes in the name of government, then it is time to acquiesce to their demands.
