If there are ZERO guns nobody gets shot...... is that some kind of mathematical formula or something......
If there are ZERO cars, buses, motorbikes, nobody dies in road accidents........
If there are ZERO machetes, nobody gets cut up.........
If there are ZERO bricks, nobody gets their head caved in by a brick...........
essentially this is all true. luckily humans are inventive by nature and they always find some exciting ways to kill others (or themselves), this is twenty first century earth and not utopia. illegal guns are a problem here, thou. i doubt whether a thief entering your house has a license to carry. but then, obtaining a gun is easy enough. all the criminal needs to do is to kill someone who carries a legal gun and take it.