In case anyone was wondering why public employees might end up joining a union.
You definitely have a point. The system is so focused on maximizing the number of “revenue units” (aka “students”) that we have reached the point where teachers and other employees seem to be treated as expendable in some schools. No teacher should have to fear for her safety in class, and administrators who won’t swiftly enforce reasonable discipline to protect teachers ought to be run out of the schools.