PC is a "tyranny of the minority"--and it happens without much debate or discussion of the consequences.
PC has no cost-benefit studies before actions are taken.
I don’t understand how the school let a couple people ruin the event for everyone else. From my understanding, no one is required to go to the celebration dinner. This woman could easily keep her child home if she objects. Growing up, I remember some parents keeping children home from Halloween parties if they didn’t want their children celebrating. It’s pretty simple.
I saw something rather encouraging not long ago at a school. I was working in a kindergarten class, and the kids watched a cartoon movie about Thanksgiving. The pilgrims talked about God quite a bit, and even gave thanks to Him in prayer.