Are you on board with that?
Or how about everyone has to have a breathalyzer installed on their vehicle?
Or how about we legislate that phones must be disabled when moving over a certain speed?
Another problem with MV restrictions is for handloaders such as myself, I often won't know for sure what the MV will be until I try it.
The mass shootings are obviously terrible, and senseless, but your chances of dying in a mass shooting are what? Surely much less than mosquito born diseases and about 1000 other things.