I know you guys have tried to pick apart what car regulations and gun regulations is an apples to orange comparison, but hear me out.
When cars first starting becoming popular with private citizens, they had like, almost no rules. And then after a while they were like “huh, it appears as though when drivers go really fast they get in more accidents, so then they started having speed limits, which varied depending on the type of roadway you were driving on.
And then they went huh, it appears as though when people drink and drive they get in more accidents, so they made it illegal for people to drive while intoxicated.
Then they were like huh, it appears as though children are not very good at driving, so they made it illegal to drive under the age of 14-16 depending on the state.
Then they were like huh, so many of these accidents would have been way less severe if the passengers had been wearing a seatbelt, so they made it a requirement that cars be manufactured when seatbelts and that it was illegal not to wear it.
I guess my point is, there is tons of crap that we (the people) have demonstrated time and again that we are not responsible enough to handle just left to our own devices. And that meaningful rules/restrictions/regulations are necessary as a matter of public safety.
I really cannot fathom why, of all things, metal killing tubes are exempt from any such restrictions