That's never been the argument, and it only takes one bullet genius. The argument has been WHY ARE YOU arguing for people having the ability to fight back? What if there were 10 or so that had guns, against 3. You do realize, they could possibly take all three of them of them out?
Again, you're more concerned about someone having the ability to fight back, then you are about the ones who do it in the first place.
No one has once claimed, that they would WIN. The point is that it would be nice, if they had been allowed the right to fight back.