This is a good read.
It is interesting how the argument can be made that Hitler did not ban guns by limiting that argument to the population as a whole. Yes, Jews were not allowed to own guns or even a stabbing weapon, but the people in the Nazi party were allowed to have guns so that is not really a “gun ban”.
I suppose if all registered weapons were confiscated in the US except for those in law enforcement and those who agreed with the administration who banned the weapons then that would not be a gun ban either. Except to those who had been banned from owning weapons, but they do not matter.