Because on a day created to celebrate one of the most influential black civil rights leaders in American history the thing to do is point to Confederate traitors who would have put him in a shack and made him pick cotton. Well if you're a racist.
Another awful human that has been given government power and a public platform. I did chuckle at the beginning when he said "Naturally she's a Trump supporter." Honestly, no one needs to point out that a racist is a Trump supporter. It's as obvious as saying dogs like belly rubs or children like Santa.