VIDEO Tucker Carlson Compares Black MSNBC Contributor to Former KKK Grand Wizard David Duke: ‘Only the Colors Have Changed’ By Michael LucianoJun 24th, 2021, 10:57 pm Tucker Carlson went after Vanderbilt University professor Michael Eric Dyson on Thursday over his fiery appearance on MSNBC the day before in which he railed against critics of critical race theory. The Fox News host first discussed “drapetomania,” a hypothesized mental illness which 19th century Southern quack Samuel Cartwright posited as a reason for why slaves tried to escape to freedom. Cartwright’s theory was an instance of what Carlson noted is “scientific racism,” which is the belief that evidence exists that justifies racism and discrimination. He then compared Cartwright’s ideas to theories on race that are being discussed today, and brought up Dyson’s name.