I’m with you on this one, SusanneT. I’m in the UK. We have had a small number of mass shootings over the years, but the response to those was a tightening of already strict gun ownership laws. Wiki gives the facts and figures, but basically our death rate from firearm attacks is very low.
Basically, unless you can prove you need a firearm for a legitimate purpose you can’t have one, and the type of firearm you are allowed to own will also be restricted.
That works for us in the UK, because most people will never even want to touch a gun, let alone own one. In the USA, where gun ownership is seen as normal, respectable and a right, it’s far more complicated. You have to change minds, hearts and also stand up to powerful lobby groups.