Mentally unstable people are the main problem, not the guns. If you ban guns the mentally unstable people will still be around with death in their eyes only waiting to cause harm in other ways, of which there are many. (Or get illegal guns, of which there is tons too) If you find way to deal with the mentally ill before something bad happens nothing needs to be banned and nobody needs to die anymore. Switzerland is a country with statistically more guns than the US and gun violence is incredibly low. There is also a lot of firearms in Finland but its a very safe country.
Mass shootings is a social, medical and economical problem in the US and if you think simply banning guns, or restricting them heavily, is going to do anything then you live in a very simple dream world.
Well from what I understand
Average joe can sell a gun to Average joe, so no checks, it is up to the new owner to do all the proper work.
Why is this even legal?
A sane person could be selling to an unstable person and it is not the sane persons responsibility.
Guns can be sold to people at gun shows with no checks required.
Why is this even legal?
Could be selling to an insane person.
Adding laws to stop this would be a start, as it also does not violate peoples right to get a gun.
As they can still get one, you're just stopping the sale of firearms, you're just making it that you have to go through places where checks have to be done.
Making it compulsory to get a psychiatric exam before getting a gun would also help.
Gun owners should have no issue with this if it means guns are out of the hands of the unstable and they're sane.
Yes, people who are unstable can still get them through the black market.
But if you make it harder for these people to get a gun it might save lifes.