Like many race reductionists, Franchesca Ramsey gets the history right, then spins it.
What’s racist has to do with how a word's used, not how it was invented. As she admits, historical context matters: Blacks who speak of "crackers" today are not slaves; they’re just black racists referring to white people.
During the antebellum era, black slaveowners undoubtedly spoke of white trash. We know that slaves did. Wikipedia says,
In 1833 Fanny Kemble, an English actress visiting Georgia, noted in her journal: "The slaves themselves entertain the very highest contempt for white servants, whom they designate as 'poor white trash’”.
Speaking of classism, the Swiss story is wildly mistold. From Switzerland Apologizes to Oprah for Treating Her Like a Pre-makeover Julia Roberts in Pretty Woman | Vanity Fair:
The owner of the luxury-goods shop, which has since been outed as Trois Pommes, is not in agreement, however. “This is an absolute classic misunderstanding,” Trudie Goetz told Reuters today. To CNN, she clarified, “Mrs. Oprah said she just wanted to look at the bag, she didn’t want it taken down, and because my sales assistant felt a little embarrassed about the price, she quickly said that she also had the model in other materials such as ostrich and suede, which weren’t so expensive. . . This had nothing whatsoever to do with racism.” In case anyone was wondering how the offending saleswoman was doing, Goetz added, “She feels very bad because she feels the way it’s being represented is very unfair.”
Another point from the article: "Even more shocking than the fact that the Pretty Woman Rodeo Drive treatment is apparently still a rampant elitist epidemic in Switzerland, and that $38,000 purses—accessories used to carry loose change, hair ties, and gum—exist at all, is the fact that someone on this planet did not recognize Oprah."
Note to anti-racists: Even the most racist capitalists know there are rich black people, and they like to take their money. If the clerk had screwed up, the employer would've fired her, because shops that sell $38,000 purses don't like to offend anyone who might have $38,000 to spend on a purse.