"That doesn’t take anything away from the fact these decisions are being made due to cancel culture."
No. Decisions like this are made to make the world a better place, for everyone. That's how society evolves, and has always evolved. The bible itself has rules they expect followers to abide by and they are supposed to make everyone better people. I'm sure there were many back in those days kicking up a stink about some of the things in there.
Anyway, it's 6 books out of about 40. When was the last time you even thought about Dr Suess books?