Every American that I know (including myself) understands the phrase "book ban" to refer widely, if not exclusively, to school libraries in the context of American politics. It's been nearly 70 years since we've had otherwise politically notable book bans[1].
> And did you find it just as egregious when Huckleberry Finn was banned in new york and california schools and public libraries for using the "n" word?
Yes.
[1]: https://www.newyorker.com/books/page-turner/banned-books-wee...