I'm not sure about staying in the Ozone. It sounds the answer, but he would be more isolated from the mainstream.
We have something very similar with my grandson (11) who has red hair and is pigeon-toed (so not much good at games). He has been quite severely bullied. School has a system where there is a room he can go to, but that makes him conspicuous and, t.b.h. it has made him unhealthily aware of his privileges. He moved up to senior school last year and the pattern is repeating. He's now misbehaving etc. in class - thinks he's special and is having to be forcibly reminded that putting feet on desk etc. is not acceptable. He's always in detention.
Sorry for all that about another kid, but the point is that special treatment has had a bad effect on him.
I really hope your school can handle this well for your son. No, you can't wrap him up in cotton wool and, as I've seen, intervention like that makes him more of a target.