Dbat, it's sad, but lots of people send their kids to private schools expressly to keep them away from kids who have (ahem) "issues." Private schools are under considerable pressure from those parents to keep out kids who are regarded as troublesome, different, what have you--they typically have little incentive to help or serve those kids.

Often kids who have unusual needs really will do better in a public school, where at least they have their civil rights to fall back on.

DeeDee