I have to say I’m no fan of racial epithets but I can put up with profanities to a point. I think using vocals with racial slurs risks losing proper context, which can really look bad for the remixer if not careful. But free speech is a big part of free expression.
Having said that, this is an awesome sample share which the remix it’s for is hard to listen to because of the unmatched tempos. In any case, I’m on your side when it comes to experimentation, just not the racial slurs.