Whites prefer to be served by whites, Asians prefer to be served by their own variety of Asian, and so forth.
Restaurants need to learn that lesson and deal with it.
That said, one might be suspicious of the outbreak of so-called racist notes left on restaurant receipts. Jews may be stirring the pot or servers may be writing these things themselves for their own reasons.
The situation is probably a combination of Jew meanness, hoaxes, and people offended by poor service or whatever.
A Saltgrass Steak House in Odessa, Texas, has banned a customer who this past weekend circled the name of waiter Khalil on a credit card receipt and printed the message “We don’t tip terrorist [sic].”