this is such a bad argument. of course its true that the person is responsible, but that's not an argument against gun control.
we can't just lock up everyone that could possibly go on a shooting spree, but we sure can make it harder for a person to go on shooting sprees. make it harder for people to get guns!
> Guns exist, that can't be stopped any more than preventing alcohol from existing
great, but if access to guns was restricted, it would be harder for crazy people from going on shooting sprees.
nobody thinks that all access to guns can be eliminated, but its pretty reasonable to say that if it were hard to get guns, fewer shooting sprees would happen.
> guns are just tools, as are knives, and diesel fuel, and even explosives
this comparison is so clearly bad:
the tradeoffs for society are obvious in each of these cases. knives are pretty dangerous, but they don't really enable someone to rampage through an elementary school to kill 27 people. diesel fuel is pretty dangerous, but it's also really useful to society. i'm pretty sure we already have controls on who has access to explosives.