Ah, selling nostalgia is the key, back to Mayberry and the Beaver, back when Marshall Dillon did not allow guns in Dodge City, back when federal programs like the TVA, building the Interstate highway system, the GI bill, and the wealthy taxed at 90%.
Oh did I forget back to when black folk were neither seen nor heard? Oh, sorry, forgot about Buckwheat, Sammy Davis Jr and Amos and Andy.