I said this in another thread, but as someone who has seen Song of the South and has studied American History it has always been baffling to me that that film is still represented at the Disney parks.
Disney won't release the film, and for good reason. Here is what Walter Francis White (NAACP president 1929-1955) had to say about it when the film was released:
"The National Association for the Advancement of Colored People recognizes in Song of the South remarkable artistic merit in the music and in the combination of living actors and the cartoon technique. It regrets, however, that in an effort neither to offend audiences in the north or south, the production helps to perpetuate a dangerously glorified picture of slavery. Making use of the beautiful Uncle Remus folklore, Song of the South unfortunately gives the impression of an idyllic master-slave relationship which is a distortion of the facts."
Also, Zip-A-Dee-Doo-Dah is based on a song called Zip C--N (derogatory word for a black person).