Just a random thought, what if instead of going after guns, the administration came down on high-caliber ammo instead?
Like, just put heavy barriers on the production of 9mm and higher-sized ammunition to the extent the only bullets available in the market for the general public are .22 LR and below, which are less lethal in general. If not anything else it would bring down gun deaths at least.
Their main argument is that there are more than enough guns in circulation already and a ban on them would only affect the "good guys" while the bad guys will get their guns illegally. Well, those guns are useless without their cartridges, and at some point the country will run out of them if no new ones are produced.
As a bonus, choking out the lethal-ammo supply chain won't even violate anyone's 2A rights.
Two major issues here. One ammunition is an arm and protected by the 2A. You know that people can just cast bullets out of lead like people did for centuries before the popularization of the cartridge right?
How effective would the casted bullets and cartridges be in general? Is it very easy to make quality ones that won't spoil the gun itself?
How easy would it be to scale them up? I confess, I don't actually know much.
Also, does implementing production quota limits amount to violating 2A? Isn't the amendment about securing the rights of the public to own firearms, and not securing manufacturers from regulations?