On one hand we have propaganda not even a century old, only possible by the invention of birth control, the creation of tv, radio and newspapers, which itself required the invention of many things such as communications faster than horseback, the existence of strong centralized states which guarantee welfare to the elderly even if they don't have children to maintain it, and technological advances and social changes which make children an expense instead of an economic asset. And this propaganda leads to societies slowly economically collapse and their populations go extinct.

On the other hand, we have the "propaganda" which has existed for thousands if not millions of years, needed no technological, scientific or economic advances to exist, and the societies that followed it grew and made all the advances required for the other.

Of the two, I know which seems to be truer and more natural.