Tell that to New Jersey.
Of course. There will be some states where the citizens either don’t know or don’t care. But there will also be many more states where the citizens care, have the right legislators or vote through the Initiative/Proposition process to ensure their freedoms including gun ownership. You at least have the option of moving to a more preferred state.
In local/state governance, the people are much closer to the problem and are better able to deal with the problem through the vote or the Initiative/Proposition process, or if need be, the recall process.
As I said, local/state governance isn’t perfect but it is light years ahead of the darkness of lights-out federal tyranny.