Historiography (like most of "humanities") is almost entirely based upon ideology to write a story around certain "facts". The practitioners might call that it is a "science" to satisfy their Physics envy, but the intent in these fields is more about molding the world more than it is about modeling it.

You can never be proven wrong by writing the future. Orwell was right. Chomsky has no alternative other than pushing another imperial narrative, like his liberal counterparts during the British Empire.