This comes as a big surprise to me.
I have never heard a peep about "disapproval" of these books.
Seems like they were very popular.
I'd think that if they were in any way racist, we'd have heard the screaming for decades, like with Huckleberry Finn.
Nope, more likely some pinko SJW did a research paper for college in the past couple of years and "discovered" non-existent bigotry.
well maybe (and I do not know for sure) they refer to Indians as “savages”, or maybe just “Indians” instead of Native-(hyphenated)-Americans.
My kids sure as H learned them, as well as Mark Twain