I’m not sure why the Suess company couldn’t do what the makers of old cartoons did on Disney+. There’s a title card warning on old cartoons that say they are a product of their time, cultural depictions are not accurate, etc.
It would be fairly simple to do this for new editions of the books. Print up front the precise images which are sensitive, and talk about what they would look like today or why they wouldn’t be included at all.