I’ll bet they’ll go after the gun associations subscription lists to gather names.
I am sure they already have all of those. We do not need to worry very much about house to house raids to gather up guns. They know they would lose that sort of fight.
What they need to do is to make gun ownership illegitimate over a significant time frame, a generation or three. They have tried that, and have failed badlly, very badly.
They still have enough control over the media that in a few states, they cause lots of problems. But overall, we are winning the Second Amendment battle.
But we are a long, long way from winning the limited, Constitutional governtment war.