An excellent set of examples of why, when I went into teaching, I worked for a private tutoring firm instead of the Public Schools. It paid less, a lot less, and provided no benefits, but we didn’t have to put up with shit like this.
I saw what the Public Schools were like when I did my student teaching/observing.
I worked my butt off to find a public school that is very different from most, and hidden in a well to do urban-rural suburb. It’s perfect, really. Not everyone in it is perfect, but not one urban problem. Well behaved kids of a couple races. No hostility tolerated.