Hitler inherited strict gun control from the Weimar Republic; he loosened restrictions for Nazis & “Aryans,” while tightening them for Jews, etc.
Many European countries have rates of gun ownership comparable to Canada & Australia. Anders Breivik did not kill 69 kids and adults on Utøya with a kitchen knife, but mass shootings in Europe are rarer & crime rates tend to run much lower, in part because of those sensible gun laws.
I’m not generally a fan of free speech restrictions. As I understand them, the British, German, Dutch & French laws aim not at “decent people,” but at blowhards who publicly spout lies and hate speech. No one committed to civil & truthful discourse would run afoul of those laws.