I wouldn't expect my children to sit for that kind of bullying in their school. I don't expect this boy to have to endure it. I would say the teacher should be facing some assault charges.
Believe it or not, teachers face flippant assault charges every single day at the hands of parents who behave like catbirds over their newly-hatched eggs, thinking there's nothing in the world more precious than their little Amy or little Tyler, and that the entire school system needs must bend over backwards to accommodate the little dears exactly as their parents pander to them at home.
Sounds to me as if you're one of the all-too-common type who would bastardize the meanings of words in order to assuage your feelings and achieve some personal goal at the expense of clear meaning and rational discourse.