Sorry, I don't think anyone should be using those words in any context outside of historical education. Kendrick shouldn't be using them either. If it's allowed because it's "art" then he shouldn't be criticizing people for enjoying it or quoting it especially when he asks them to.
I'm not saying the jokes aren't funny, but I do believe they aren't necessary and they reinforce ideas that don't need reinforcement.
There is a difference in how it's used, but not everyone has the same feel for it or the same sense of humor, and it's simply not worth keeping around - imo there is very little that can be said using racist terminology that is more important than why we would choose not to use it.
Just my two cents. (But those are not the same cents as my cents about GFL, but I don't want to get into that. Obviously, I miss him being around here.)