What was the book? Daniel Moynihan basically said the same thing in the 1960s (I believe), so I'm surprised referencing a book on the subject would get one banned - unless it had other stuff in it.
Hints will do if there is a concern about ruffling feathers.
It is a fictional book written as a diary of an obviously racist and antisemitic man.
The antisemitism is way off base, but the description of the society in which black grievance has been elevated to a level of supremacy, wherein any criticism of blacks or their behavior, no matter how criminal (rape),
was a bigger crime (racism) than the one being criticized,
was spot on and very much the direction our society is apparently headed.