Should total confiscation be attempted, all they will do is issue warrants for all known/registered gun owners and wait. The next time you drive the officer runs your tag and see an outstanding warrant. Whaddaya gonna do? Start a running gun battle with himr and bring the whole force down on you? Or how about your family being with you - gonna risk them? i.e. Turn in your guns or stay in jail and risk your job, etc.
Typical of Washington, they’ll put the load on the police forces and pick you off one or two at a time. Maybe each trooper will get a new quota system - to keep the frogs from yelling about the hot water - each pick off no more than 10 or so a day. Yeah, it will take a while but with all 50 states doing it, confiscation will be accomplished with little or no bloodshed - and no door-to-door raids.
“The next time you drive the officer runs your tag...”
That officer has a life: friends, Family, a home, a car, etc.