Not advocating the use of ANY hurtful racial epithets, but it sounds to me like Miss Fei skipped "Social Studies" in high school. Too bad we don't require kids to learn about US history any more.
Oh - the DO "learn" about "History" - its just a much different, PC, revised version of history that has little similarity to actual events. In fact, I'm surprised that History textbooks and class registration materials don't include similar language to what TV programs have to scroll across the screen "not based on actual people or events. Any similarity to facts is purely coincidental".