After i see this movie, i think Michael Moore has negative bias of white peolple who was racism.
And he wants to let us know about brief history of USA. Such as origin of KKK and National Rifle Association.
Also, black people had their own rights and life. Same as another ethnic.
So Michael Moore wants to show us history of USA, and then he wants to change our adverse mind.
Finally we should not make a same mistake again like this sad history.