Actually, I'll go against the grain here.
Let me say that I am usually against censorship and support robust debate.
However, books like OFOTCN portray racism and the content must be incredibly uncomfortable to read for black students, especially in a class that has a mix of white and black students.
Imagine having to sit through discussions of gut wrenching institutional racism as a teenager in school, when you are already feeling sensitive about all the usual teenage things: debating the utter lack of dignity afforded to African Americans people, it must feel excruciating to read a book with your classmates that was written when there wasn't much awareness about racism.
In the context of schools being a mix of ethnicities with black students mostly still being the most disadvantaged, it can be incredibly uncomfortable for bale students to read such a text in the presence of white pupils and probably teachers who will have unconscious bias (through no fault of their own).
We know that mostly it's really hard to understand the extent of racism for white people, even with the best of intentions. I don't think the classroom is an appropriate space for OFOTCN as black student don't have a choice whether they want to attend and take part in discussion or how the conversations in class pan out. Ditto about the way learning difficulties are pictured.