It’s almost a cliché. First, someone talking about blacks makes reference to fried chicken, watermelon, monkeys or dogs—or even uses the indefensible N-word. Then, along with the inevitable apology, comes the kicker: I’m not racist. The latest denial is from golfer Sergio Garcia. Asked a joking question about having dinner with his adversary Tiger Woods, Garcia said: “We will serve fried chicken.” He later apologized for what he called a “silly remark,” then added, “but in no way was the comment meant in a racist manner.” … “I think it’s human nature that if you’re a racist, you don’t want...