The NEA will never let this guy teach period. It would be a threat to their dominance.
The gall this guy has - trying to maintain order in a classroom how insensitive!
The school's administration probably dumped the worst students on him. They probably despise him, but mainly see a chance to dump their worst problems onto someone else's back.
If that teacher survives this year, and he's smart, he'll learn the game. Teachers use seniority to manage themselves into tolerable,insulated situations inside these animal shelters.
It's probably too late, however. He has comitted the unpardonable sin of showing that public ed is a feather bed.