Since all bans on weapons and self-protection are unconstitutional we’d better set death traps around all schools, bowling alleys and restaurants. Personnel landmines might do the trick. Set them up around the perimeter to protect the schools since guards, cops and “good guys with guns” can’t be everywhere all at once to stop bad guys armed with weapons designed originally for hunting human beings.
If landmines don’t work, why not drones?
Or better yet, since we’re all utterly insane for thinking MORE weapons in society are clearly better, why not nuke ourselves and get it over with?