It's certainly not impossible that we've blinded ourselves to other problems by being so quick to blame all of their woes on colonialism however. The real world is rarely so simple. I find it a bit condescending when we try to pin all of the blame on western influence in the past, when these people are quite capable of fucking up their own lives without your help thank you very much. The idea that the old hunter-gatherer lifestyle was idyllic and perfectly in harmony with nature is also a myth.