Because they were all horrible people? The atctecs were the russians of south america- a grueling empire, that had it won the run to steam ships first would have invaded africa and europe, to build human sacrifice pyramids?
They are just characters, surfing the waves of technological change and resulting cultural power asymmetries. They are surprisingly irrelevant and replaceable. But they are the representatives of cultural deficiencies, propelled onwards by geography and circumstances into moments of clarity, where one party is thrown into a "catchup" race at all costs to prevent the other from overtaking it now or later.
They are just characters, surfing the waves of technological change and resulting cultural power asymmetries. They are surprisingly irrelevant and replaceable. But they are the representatives of cultural deficiencies, propelled onwards by geography and circumstances into moments of clarity, where one party is thrown into a "catchup" race at all costs to prevent the other from overtaking it now or later.