What part of the current gun culture is well regulated or serving the state? None but the police and the armed forces.
Guns are for killing and destroying things, but there's a prevailing culture to act as if they're like collectibles. Those who buy them because they worry about a ban and they think they need one are inviting a killing tool to live in their house. I don't see a culture of safety; I see a macho culture that wants to treat guns like collectibles, and gun makers encouraging them.
The guns end up getting used. We all know that gun accident injuries/fatalities (toddler kills sister etc.) suicides, and other unfortunate happenings are possible if you own a gun. We also all know that these fatal accidents are fairly common, enough that I could shit the thread with examples if I need to. And what about when all these surplus, basically-new guns end up falling into the wrong hands? My cousin's house was burglarized last week while she was on vacation, and that pro took everything he could steal. If they owned a gun, that gun could now be in the hands of a practiced criminal. It's dumb edgy white guys who buy a gun for a hobby who are most likely to have the same gun taken from them and used against them. Locks and lights deter and prevent burglaries much more effectively and safely than firing a gun down your hallway at a presumed assailant will end them. (Edit to add: Just ask Oscar Pistorius.)
Hopefully, the stupid gun hobbyists have theirs in a drawer or safe somewhere 95% of the time and theorize about increasingly silly scenarios in which they would need a gun designed to kill herds of wild hogs in Africa. But the guns aren't staying in the trophy case. Adam Lanza's mom was a hobbyist: her son was a monster who murdered her with her own gun. Criminals who steal these surplus guns from normies can use them later. Collections get sold and end up god knows where. I couldn't get into a hobby that causes so much unintended downstream murder; it's like breeding fighting dogs 'for self defense' because you think it'll rustle the PETA people's jimmies. You're asking for problems.
That said I do think people who need guns to to their jobs (security, hunting, defense from wild animals) should be able to get the kind of gun they need, but they have to be vetted and permitted. In my utopia, you would need to prove to the licensing board you're a hunter, and keep certifying you are actively hunting from year to year to keep your gun. If you want to play target practice with guns, you use guns provided by the range. If you're a rancher in Montana whose cattle keep getting killed by wolves, you apply to Fish+Wildlife and the sheriff for a permit to buy a rifle. No more stupid overpowered COD guns would be sold to random dickheads whose only reason to buy one is wanting one.
The gun makers are the people who profit from all of this 2A sperging anyway, you saps are just the ones getting killed.