That's certainly true. Ottawa Public Library has a Book Sanctuary list of 79 titles and a lot of them are intended for children and youth. Some of them have been challenged by both conservative and more progressive factions, though generally for different reasons. Interestingly enough, a couple of them were on the high school English curricula back when I was at that stage (Great Gatsby, To Kill a Mockingbird)
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https://ottawa.bibliocommons.com/list/share/354296247/2475085309?page=4