That statement is very dubious, and IMO, lacking empirical justification. No LLM here, just a ton of historical reading, I’ll rank order what I consider the root causes of the metacrisis.
- Global population growth.
- Global economic growth.
- The end game of the Westphalian nation-state system at global civilizational scale.
- Weapons of mass destruction.
- The end game of the financialization of capital.
- Lack of cognitive/emotional capacity to cope with extreme complexity.
- Biospheric pushback.
- Culture out of phase with current requirements.
I can see improved metaphysical understandings as contributing to the mitigation of points 6. and 8. Moreover, the Second Renaissance thesis (as I see it) is Donella Meadows “high leverage” on the other points requires personal and cultural transformation in the first instance. But to say all that follows from metaphysics would require far more evidence than you have been able to offer. I am seeing very little psychological development theory that points to metaphysics first. Metaphysical theorizing is more like the product of thinking that elevates to a certain level of complexity. The cultural story is more even complex (and I love to get it into - see the great majority of my posts!). Let me just say that your statement above mostly suggests you out of your depth when it comes to the history of culture and philosophy. If you wish to debate these points, my bookshelf (full of distinguished authors), and my unaided brain (also full of distinguished authors) stand at the ready!