The natives for the most part lived sustainably for thousands of years. Their societies were shattered by disease, invasion, genocide on a scale the Nazis admired, and attacks on their cultural integrity and family structure that resembled Stalin’s disruption of families in the old USSR. Freedom of religion was banned despite the constitution. The rule of law did not count in treaties.
Some have managed to preserve part of their heritage through all that horror. Some are attempting to rediscover it. And some are so shattered culturally and psychologically that they are drunks and worse. Some are modern. So your stupid generalization is as ignorant as it is pompous.