I think he saw a pattern. There is a common idea that if one person or a small group of people have too much power, they might become corrupt. Similarly, certain patterns exist which are likely to occur in specific contexts even if that context exists in a system with variations (like time difference from medeival time to the present time). Some examples of his "stories" coming true are the Newspeak, Animal Farm.

Human history gets erased when libraries are attacked- Library of Alexandria, Nalanda University Library, etc. One thing that everyone needs to acknowledge is that mistakes will be repeated if you forget history. With my limited knowledge, I feel that by removing the statues of Columbus, you are more likely to forget how the lands were colonised. That is probably not entirely true since libraries exist along with other sources (which will also probably be removed from existence eventually)