Primary schools that blame victims for impulse violence

[annee]

I have a seven year old who is quiet fiesty but very empathetic so when trying to prevent the child who usually gets in trouble from actually getting in trouble, it ends up in tears - he doesn't see it as help and strikes out and she tells him off until it gets to the point she gets physically hurt. She's not the typical 'bully' target, as she takes no bull, but when it escalates, the adults turn a blind eye and the unruly kid remains very much unruly, thus instilling apathy in place of her empathy. I've talked with the teacher and the HM, but I think they need to digest it in black and white.
Other suggestions to consider on a postcard please!