Literally every modern handgun and rifle is semi automatic, save for skeet shooting break-action shotguns and some revolvers.
So? My point still stands. It’s designed to kill as fast as possible. It should be banned.
I will always take the side of our school children and a safe society over guns. More guns do not create safety, they exacerbate violence. Most other developed countries do not have this kind of violence, and they do not have the easy access to weapons designed to kill as many as possible as fast as possible.