High Tea
kiwifarms.net
Some places do publish Little Black Sambo. Because it is public domain, there is not as much monetary risk involved as copyrighted material, no one to pay royalties to. You are right about most books being memory holed, but many books that still have copyrights are gradually changed in the hopes of accommodating the current narrative; remove a word here or there; change the cover artwork so it implies more diversity, etc. The book would have to be beloved enough that people still care and there is no way to salvage it, ala the Seuss books since the artwork is integral.Most of that stuff just falls down the memory hole on its own without needing to be cancelled though.
To cash in, it really would have to follow the Dr. Seuss model - a beloved book that's still under copyright gets pulled out of print by its owners with a big media splash, Fox News whips up a big boomer reaction, and you jump in right at that moment and dump your stock.
Another instructive example is the most famous "cancelled" book of all, Little Black Sambo, which I believe was pulled from print sometime in the 80s. It's not hard or expensive at all to get a hold of a copy now on the used market.
