Jesus, I can't imagine having to send my future theoretical son to a place like that (and I am not saying that as a criticism I just remember what bullying was like in UK schools)... does it affect his schooling? Send him to thai boxing for a while.
He goes to jui jitsui, but is high-functioning autistic with hand-flapping tics, so he doesn't understand how to read people who are mocking him/being bullies.
It has been pretty amusing to see him finally twig, then send a 12 year old flying with a flawless Harai-Goshi...
His default setting is "be everyone's best friend", which often gets taken advantage of.
The school is very good with a strong respect ethic, but it has a separate Provisions unit that takes in kids excluded from all other schools in the city - it occasionally causes issues, having to deal with the parent(s)/carers who just don't seem to give a monkey's, but the unit's resources are available to the rest of the school.
It means if The Boy gets worked up or feels he's struggling, he can go to any of the unit's support workers and vent/sit out.
Being accepted into the Chelsea Football Academy (the after school club, not the actual, "Son's gonna buy me a mansion one day" Academy) has really boosted his self-esteem and he's starting to learn how to read people better, if only to understand where they're going to kick a ball next...