OK, say some nutjob does decide to go on a rampage? What happens then? He gets fucking shot. Two people die at most. And rampages like this, while they do happen, don't happen three or four times a fucking year. So that's 2 or 4 deaths a year compared to this happening three or four times a year with 6 to ten deaths each time. 18-40 deaths.
I'm just talking about things like school shootings.
Another idea is to just install metal detectors at every large public place, from schools to malls. Honestly I think this would be more effective.
However, I still stick by my argument.