Unless the videos were threatening in some way, this indeed is none of the school’s business.
You know, its’ stuff like this - Bullies picking on the weaker ones, that lead to the black trench coated EMO’s to come to school and shoot the place up.
My guess is that the same people here crying free speech would be the same ones to chastise the school for NOT doing anything if one of the targets shot the school up, and this video was later revealed.