That is rather conspiratorial in mindset - asserting there must be a single "entity" as an actor as the universal or driving force. Like the old freaked out mon

That is rather conspiratorial in mindset - asserting there must be a single "entity" as an actor as the universal or driving force. Like the old freaked out monarchist conspiracy theory which blamed the Jews and the Illuminati for the French Revolution. The idea that people were simply too fed up, the relative balance of noble vs commoner in combat changed over time making the fight winnable unlike prior forgotten revolts, went against their world view and had to be psychologically denied at all costs. The charge of "destabilized society" is basically meaningless for a mutating ship of Theseus. Did it count as razing Constantinople when it was officially renamed to Istanbul? Even when the Saxons conquered the Anglos it did not destroy their society, it killed their ruling class and mutated it. Technically even the cultural group description is an anachronism with Feudalism dealing with subdivisions via bloodlines and allegiences. Collapse of an entity or entities in which there was widespread dependency has lead to a vacuum, at least briefly.