Advertisements are always mirrors of society, and sometimes what they reflect is ugly and startling. This week, American Eagle, which brought us baby tees and low-rise denim in the aughts, debuted an advertisement campaign starring actor Sydney Sweeney. Sweeney, 27, is featured doing all sorts of Americana things in her American Eagle denim — like leaning over the hood of a white Mustang or lying on the floor holding a long-haired German shepherd puppy. At the end of each video, an off-screen voice speaks over blocky letters declaring that Sweeney — blonde, blue-eyed and white — “has great jeans.” The...