Canada

This isn't for you, but anyone else who feels similarly to @sunshine@lemmy.ca

In Canada, all firearms are regulated and fall under 3 categories: Prohibited, Restricted, and Non-Restricted.

In order to possess or buy a firearm you must be licensed. To get a license you need to pass a firearms safety course, and pass a background check of varying severity depending on the class of license. History of mental issues? Good luck. Ex girlfriend doesn't want you owning guns? You'll be getting a suspension in the mail instead of a license. On top of that, most Canadians are ineligible for Prohibited and Restricted licenses which are limited to mainly the Military and Law-enforcement (with club owners and those grandfathered in being the notable exceptions).

The one category you do need to 'worry' about are those deemed Non-Restricted. Firearms that fit in this class are limited to long rifles that don't have an automatic action. Even here, cartridge capacity and transport options are limited. What that means is you won't see normies walking around with a rifle legally, except maybe under extraordinary circumstances and they are functionally limited to the point even street patrol officers outclass them. Someone with a longarm could indeed commit violent crimes, but the scope of the damage would be limited to 1 or 2 before reality prevented any further harm to the public. The same amount of damage a madman could inflict with a butcher knife.

Looking at the image and scenarios described in the article make it clear further laws are unnecessary. Almost all of those weapons in the photo are restricted to law enforcement use or flat out prohibited already. Some are clearly labelled "Restricted" but you can tell just by looking at them. Automatic action, or barrel short/sawed-off? Restricted/Prohibited. Magazine larger than your palm? Over capacity. There are only 1 or 2 actually Non-Restricted firearms presented and the issue with them is they have a conversion kit to change them from semi-auto to full-auto, which is already illegal.

If you see an article about an instance of tragic Canadian gun violence in the news the perpetrator will (or should if accuracy is intended) be described as in possession of illegal firearms. They always are. The issue is they weren't caught in possession of the illegal firearms before they acted, and more laws won't fix that.