You're talking about something you do not know to well, and I restate, that we can have guns.
Gun control is all about trying to keep them (in quantity) out of the wrong hands. In the USA that has failed, in Euroland less so.
What am I to expect from you anyway, since your main point about problems is that either they don't exist, or it's pointless struggling against them, - i.e. drugs, crime, environment.....
If you have mice in your barn, what to do?