Huckleberry Finn is a great book, but I would not like reading that ridiculous, tedious, distracting, poorly written, and quite unnecessary "dialect" (more precisely trying to read it) out loud, and the other racially charged material as well, even though Samuel Clements' message was strongly anti-racist.
The few racially charged passages in The Great Gatsby are also offensive, and I would not like having to read them aloud either. I would be tempted to censor them voluntarily. They have little to do with Fitzgerald's excellent novel. They do reflect the mindset of the times, including Fitzgerald's, and, in a larger context, suggest that the moral dilemma presented in the story was less a problem for Fitzgerald than it would be for many of us, a subject well worth exploring in itself.