Disconnect
Imagine if somebody wanted to repeal the Fourth Amendment on the grounds that 99.9% of Americans will never need it. What kind of sense would that make?
The anti-gun people I've known have taken the view that being attacked is so unlikely that it's silly to prepare for it: If you disarm, say, a thousand people, something like 999 of them will never have needed a gun anyway. Pro-gun people tend to see it differently: Some people, beyond any doubt, are attacked every year, and if you disarm everybody, you are disarming each and every one of the particular individuals who'll need a gun very badly.