A float featuring Christopher Columbus makes its way down Fifth Avenue during the 75th annual Columbus Day Parade on Oct. 14, 2019, in New York. Drew Angerer/Getty ImagesEvery October, a parade of opinion writers, politicians and Americans of Italian descent celebrate Christopher Columbus as someone who represents Italian Americans. But associating impoverished 19th- and 20th-century Italian immigrants with a 15th-century explorer disavows the cultural identities of Italian Americans. It renders