Another aspect Yenne addresses is that of Sitting Bull as mythic image of a warrior.
“I’m still stunned by how many people truly believe that Sitting Bull put on a big eagle feather headdress and led the warriors against Custer at the Greasy Grass. This is the image that had gotten him painted as the ultimate hero or ultimate villain. He becomes a caricature to support a viewpoint. This caricature has taken on a life, or parallel lives, of its own, becoming a myth that I have tried to dispel.”
Suppose you asked them some questions about his life? E.g.,
I'm guessing most Americans wouldn't do any better than chance. They don't have misconceptions so much as no conceptions.
P.S. Those who read the graphic novel SITTING BULL get a reasonably complex view his life.