Sounds like your son is going to be ok. Kids are tough. Arrange a face to face meeting with the principal, teachers and yourselves. Include your son. It's more about teaching your son how to address these situations than trying to teach the teachers. Allow the opportunity to air grievances and discuss alternatives and give your son the opportunity to be the bigger man. If nobody apologizes then your not obligated to forgive.
You’re a long way from the 70’s, bro.
Get the cock suckers fired.
