In Harriet Beecher Stowe's novel, the eponymous character was meant to be a sort of model of resistance against slavery, a man who whose "devotion to his fellow slaves is so unshakable that he sacrifices a chance for freedom and, ultimately, his life to help them". Some argue that the term Uncle Tom, as it has been used for the last century, was misappropriated.
So that got me wondering if there were alternative words or phrases used to describe a black or colored person who is subservient to whites. House negro is obviously way too politically incorrect, even for Internet discussions. Aunt Jemima is too closely affiliated with the brand, which is still popular today. And Aunt Jane/Mary/Sally are not very recognizable.