Complex sentence: The situation had put pressure on the Library system due to the interracial marriage tale by anti-integrationists, thus causing the book to be banned from all libraries in Alabama because it was assumed that the bunnies' relationship targeted segregation laws.
Split into simpler sentences: The situation had put pressure on the Library system due to the interracial marriage tale by anti-integrationists. This caused copies of the book to be banned from all libraries in Alabama because it was assumed that the bunnies' relationship targeted segregation laws.