@ForeverNight: Less people are going to die if everyone has guns.
I'll repeat what I said:
If guns are illegal, then it's more likely that the people that will shoot people will get guns anyway, and then shoot people.
If it is required for everyone to own a gun, then the criminals will think "Ohh maybe I shouldn't shoot em' because they might have a gun."
This is also another difference between European and American thinking about guns.