As an FYI, this is a very old thing that people are doing. There’s actually a term for it (beyond just “corporate censorship”). It’s bowdlerization or expurgation. And, on some level, I understand why people of a certain ethos would be opposed to it. Beyond the obvious reactionary agenda of being “anti-woke,” there are concerns here over artistic or authorial autonomy and the fear of a slippery slope in which previous cultural attitudes are historically white washed. And I think it’s good to acknowledge the past honestly. Not to celebrate those old attitudes, of course, but to let it stand as it is, scars and all, as a cultural artifact of a very different time. Editing the content of the original work to hide what is and was reduces it from that status of cultural artifact to just pure entertainment. That said, content warning wouldn’t really rob much from the book, unless you believe every book should be a complete and total surprise to the reader. I can’t comment too much on the beliefs of the author of this article, but their opposition to much of what they’re complaining about comes more from a place of “the woke mob is ruining books” rather than anything I would say is a more complete or salient examination of how we collectively relate to the art of the past.