A lot of people are correct to assume the government doesn’t want us to have guns. Where they are mistaken is in how the government will do it.
There will not be police or military personnel going door to door searching your home. They will do it through the courts and bureaucracy by attacking the suppliers and manufacturers of guns and ammunition. They will bankrupt and destroy as many as they can, unless they toe the line and only sell to the government.
As for the ones already in possession by the people, I imagine they will be taxed and registered, with harsh penalties for those who fail to do so. The taxes will increase to a point where only the wealthy will have them. The average person will have to decide whether to give their guns up, or hide them and face prison time and fines if they get caught with them, or have to use them in self-defense.
That’s where we are headed. They won’t do something as bold as confiscate the guns head on in the open.