How about solving the actual root cause; making a sustainable economic system which does not exploit earth’s limited resources infinitely?
How about solving the actual actual root cause: humans are currently wired to seek dominance over any and all resources?
Barring that, our alternatives are:
1) Open the final frontier to the nearly unlimited mass and energy resources of the solar system (and then on to the stars).
2) Massively reduce the population via increased death or birth control.
3) Put everyone into Matrix-like virtual reality tubes where they use minimal real-world resources.
Would be worth revisiting and adding that as an alternative. Reshaping culture is not as bizarre as it seems (i.e. womens rights, democracy, egalitarianism, voting, an 8 hr workday, public education, all recent inventions/shifts)
Maybe so (I'm skeptical of that claim), but anyway it only takes one culture that does to take over. At some level, a specific group of humans controls each resource, regardless of whether they're generous with it.
Agreed on your second point; it's not an alternative, it's the root cause. If we're able to improve our wiring, that's great. I'm not knowledgeable or optimistic about that prospect, hence the alternatives.