“Humans are naturally acquisitive. We want to endlessly accumulate.”
The Mbendjele BaYaka people of Central African Republic will periodically leave their camp to go start a new one and leave all their material possessions behind.
The people of Trypillia would periodically and deliberately burn their houses down and build new ones atop the rubble.
“Humans are naturally greedy and selfish.”
The Nyaka people of Uganda engage in demand sharing. If you say “I want that” about something they have, they will give it to you as readily as an American might hold a door open for a stranger.
“Humans are an invasive species that naturally over-exploits its environment with reckless and shortsighted abandon.”
The Yurok of California deliberately lived off a diet of primarily acorns, leaving many other resources un-exploited, because they were wary of the hierarchical and exploitive lifestyle of their neighbors to the north.
“Humans are naturally and myopically self-centered and descend into violent competition when resources are scarce.”
Starvation is rare among forager societies, despite the common perception that they live on the constant knife’s edge of survivability, because people in these communities tend to share with each other unless there is literally nothing left for anyone.