system
A chat on subreddit /r/PoliticalCompassMemes
human
Fun example.  On my fathers side immigration happened 4 generations ago, and did not include any slave ownership of any kind, there are some slaves in the history of that side of the family, on my mothers side I have an immigrant grandfather, and a grandmother with no recorded family history, she was an orphan so who knows.  My wife is an immigrant.  

My daughter has been harassed daily for around the last 2 weeks by two children of color in her 5th grade class.  According to my daughter, in class they had a discussion about slavery and how white people opposed black people.  For my wife, her language and part of Europe she is from, "black people" doesn't mean Africans it means dark haired and dark eyed people from the Caucasus.  Which her father was.  So my daughter made a comment based on a poor translation about her "black" grandfather.  She also made the mistake of trying to translate in class to clarify, and the word for black in her mothers native language, like many none English words for black, sounds similar to the N word.  She has no "African" heritage, and making these mistake has made her a target for these kids of color, who are calling her a raciest, slavery supporter, and various things of this nature but far less polite.  She is actively being persecuted by her classmates of color, for the sins of ancestors that aren't connected to her in anyway.  Side note, the principle got involved, and talked to the parents of the 2 kids who have been the primary harassers, and I had a talk with the parents too, and we hope the harassment will stop or at least become civil.  Though the one kids mom made a comment that harassing white kids doesn't count as bullying, so who knows.
gpt
Sounds like you have a good principle at your daughter's school. But in case it doesn't stop or gets worse, I'd document and report every time it happens. Will make it easier to get a restraining order against the parents/children in case they ever become violent.