May as well be the rest of the quote.
At this point you may as well just advocate for executing the poor.
That's why it's so bad. One employee starts pulling dumb shit and several employees report it to the manager, good chance that employee's not going to be able to keep it up much longer or they'll be gone. Yes, abuse happens at workplaces, but school-type bullying doesn't have the same kind of cover it does in a school. Several students report a bully, that bully will still be there next week. And next quarter. And maybe in their class next year. Still being a bully.
Selection bias during admissions gets talked about a lot when it comes to private schools, but they also have the superpower of being able to tell a kid who won't shape up to GTFO permanently. One family's tuition isn't worth risking several other students leaving. This can and does happen, and it doesn't solve all the problems, but it means the worst of the worst don't stick around like they do at public schools, poisoning the whole school atmosphere.
Maybe things are different now, with kids spending too much time indoors playing video games instead of running around in the woods. But I think violence is generally an outcome from boys being together and relatively unsupervised. The insidious part about violence in schools is the double-jeopardy you face from administration; first you get your ass kicked by the bully, then you get your ass kicked again by the bureaucracy putting you through the wringer.
A boxer obviously will see violence, so will a pigskin football player. Those are things they signed up for and the violence is part of the voluntary activity.
A soldier (or policeman) signs up to be in war, either an active one or one that might happen.
A high school student, a cube worker, a barista, a fireman, they do not sign up for violence.
The difference is that children have no choice but to go to school. They are sent to the slaughter.