They are hypothetical numbers, don't worry about how they would work, just assume they do and they eliminate 800 murders per year. Is that enough to warrant some sort of action? Remember, every murder affects the survivors and there are many more of them than there are victims.Well... I happen to know what it was in 2013 and it was around 8,000 murders that were committed using firearms. Assuming 330 million citizens that works out to 2.42 gun murders per 100,000 people.
Can you walk me through how registration will eliminate 800 of these deaths per year? Will the victim say, "wait, before you shoot me show me your gun registration?" And will the shooter say, "heck, I don't have one, I guess I can't kill you?"