I don’t consider Song of the South to be racist, just to be dumb and boring (but the animated sections are very good). Is Gone with the wind racist because there is a black maid ? Is Big hero 6 racist because the main character is a science genius and looks japanese ? Is Thor racist because a white god is portrayed by Idris Elba ? Well, I don’t know but I’ve never known Dumbo was considered racist (or partly racist) before reading it here. I also don’t like the concept of “racial caricatures”, because aren’t characters in movies archetypal representations ? It’s a very complex question…