I'm not sure what I find more humorous; the doomsday appeal to a meaningless warning on a service no one here uses or the lack of understanding American history and the even more lacking of understanding how to go about accessing easily accessible information about American history.
Generally, people don't generally liked to be portrayed in correctly.
The character trope is derived Uncle Tom's Cabin, along with a couple other racist stereotypes. The book caused such a controversy, because although the plot is essentially the evils of slavery, black people were depicted in a narrow sense as functions of a larger narrative. These characters were taken and used very variously for productions based off the work, in which the characterizations were used positively, neutrally, and negatively in terms of depicting black people into the early 20th century.
It's almost a little insane how much these characterizations are still embedded in the American psyche 150 years later...