This reminds me of my sister, a 2nd grade teacher in the Seattle public school system. She quit and moved to another school. Why? She got tired of kids throwing chairs and scissors at her.. and she was pregnant at the time. She got accused of being racist for kicking the kids out of class. This was absolutely ridiculous as she happened to have plenty of black African immigrant students who were very respectful. Yeah, it's a culture thing.
A big rule at my home as a child, get a spanking or other punishment at school--get worse when I got home. There was no defense, it was automatic--the teacher was right.
My mother-in-law until very recently taught kindergarten. It was painfully obvious to her which students had been taught to be respectful in their homes and which hadn't. And it was always the one or two which hadn't that made the other 20+ in the class miserable.
In older times (ie before state-run education) these children were simply sent back home until they could behave. Now parents abdicate this responsibility and then have the gall to blame the teachers for not reigning in their own children!
Another way to look at it might be that we're socializing children at ages way too early. It might be better to wait until development rises before social engineering begins.
Just another example of public schools NOT teaching to real life. And yes, they DO want all of America to turn into Ferguson...then they can pretend to come in and save the day...proclaiming fairness and equality for all that quickly turns into brutality and starvation to control the masses, like all dictators do.
In older times (ie before state-run education) these children were simply sent back home until they could behave. Now parents abdicate this responsibility and then have the gall to blame the teachers for not reigning in their own children!