Australia & UK indeed require registration of all privately held firearms, and this is what makes confiscation so simple:
“Turn them in, citizens, because you don’t want the police at your door seizing your guns and arresting you for noncompliance which makes you a criminal forever.”
Outside of NY, NJ, CA, CT, where FOID & registration of `assault’ weapons is mandatory, there are few registered guns in the U.S.
If the authorities want then to knock on every door in America in a random search for guns, it’s insurrection & civil war for sure.
I figured as much.
Registration is a necessary prerequisite to confiscation.