Basically DD has been bullied and ostracised by everyone in her class. She is quite quiet and well behaved which is apparently causing it. ~They have accused her of doing something terrible (she didn't) but they are just fronting it and accusing her falsely on purpose. The school said they could not intervene and has basically let her be bullied. At times the teachers have even joined in.
DD now says the girls are evil,spiteful, cruel, liars and hypocrites (they keep accusing her of bullying) and she would not hang round with them even if she could because of all of the above.
Should we just leave? How do we go about resolving this peaceably?