The question of questions is, how much more evidence do these gun-control people need, before they give up and say, "Oops, we were wrong!" ???
FYI to you and seemingly everyone else on this thread;
It should have been obvious by now that the real adgenda of gun grabbers is not to deter "gun crime", but to disarm us citizens. And it matters not that we have good arguments against gun registration, because they will keep at it until we (law abiding) are completely disarmed. They will not give up.
Sadly, all available evidence suggests that you are correct. Molon Labe!