I hope I come across as sympathizing with their plight and would give anything I could (except guns) to make their jobs easier. Indeed, guns would only make their jobs more difficult.
It’s hardly an assumption to say that if you give a million plus teachers a gun, it increases the statistical likelihood of having a teacher do something bad with the gun. I’m not saying that every teacher who is given a gun is at risk of using it for horrible ends. Nor am I saying that teachers in general are a powder keg waiting to explode, but there are undeniably some teachers for whom possessing a gun would be a bad idea.