I still don't see where Chris Columbus has anything to do with Thanksgiving or Halloween. Yes, Old Chris wasn't near as nice as we were led to believe in school. He brutalized the native people of the Americas as did countless other Spaniards who followed him. But while the teacher might have a valid beef with Columbus Day, any connection with Halloween and Thanksgiving are lost to me.
My first thought - if this woman can't even get a decent reasoning together, then she shouldn't be commenting on it.
My 2nd thought - if these "holidays" are noted at all on the school calendar for this public school, then the principal needs to STFU, cause her policy would be inconsistent with the public school recognition of the holidays.
Glad I'm not in her district.