If a massive door-to-door gun grab ever really does happen, regardless of the state, I see three options for civilians:

1: Defend your home and your rights with lethal force, and end up getting killed or sent to prison for a very long time. And they take your guns anyway.

2: Be a sheep and let them search your house and take your guns with no shots fired.

3: Pretend to be a sheep, and let them search your house, find a couple of guns which they will confiscate while you keep your eyes on the floor. But you have prepared in advance and your real firearms are stashed in watertight containers deep in the woods.

That way the government has you labeled as a sheep instead of a troublemaker, and you are still prepared for taking care of yourself and your family, which is not the result of option 1 or 2.

Sun Tzu stated that all warfare is based on deception. When strong, appear to be weak to your enemy.

The most important weapon you possess is your brain. Use it first.