Recipe for Destruction of a Culture
If for some unknown reason you were committed to destroying a native society, you probably could not do a better job than the European colonial powers in Africa and Asia. The formula goes something like this: conquer the natives militarily; indoctrinate them in foreign religions; forbid birth control; convince them that the way out of their circumstantial misery is solely through your institutional power; keep your subjects in a state of abject poverty; repeat endlessly for countless generations.
Eventually, the victims of your societal destruction will forget altogether that their dysfunctional system is the direct result of your meddling. And so long as they keep having babies indoctrinated in your evil model, another generation of indentured servants will be yours to exploit.
We can call these places “developing countries,” or whatever other euphemism sounds nice. But they are really client states of their richer, whiter masters. And that’s the way we like it.