Ursula K. Le Guin's "Always Coming Home" depicts a stable post-apocalypse world.
There's no great discussion in the book about how this world evolved.
https://en.wikipedia.org/wiki/Always_Coming_Home
I don't think we have to blow ourselves to bits or tear what remains of the natural world apart seeking increasingly limited resources. That's not an inevitable consequence of the human condition.
Our planet can indefinitely support a thoughtful civilization and protect a natural environment that's constantly evolving in adaptation to the now inevitable climate changes.
We don't have to live in a world where billions of people are suffering and dying prematurely in support of absurd economic theories and religions that never reflected the realities of our physical world.
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