Okay, and it's bad that china will depopulate? Won't every nation, eventually? Are you making like a "suffering / loss of life is bad" argument? It's hard to disagree with that, if you are. (I certainly don't.)

I think you're deriding my use of "Carrying capacity" as an archaic concept, but your retort is that we're "creating ecosystems."

But, every organism within an ecosystem "creates" it just by existing as part of it, so I'm assuming you mean "heavily modifying it to suit our species' need for insatiable growth."

Taking this from that perspective, the 20th century agricultural explosion (that you link to ) is a prime example of how we've hijacked systems far beyond their natural limits, to largely deleterious effect.

That wikipedia article even enumerates some of these: biodiversity loss, GHG emissions, etc. There are many examples elsewhere [0].

Sure, there's a lot more food, and that's good for population health and well-being. But that "good" assumes that we've decided that large, consistent growth rates are "good."

[0]:https://scholar.google.com/scholar?hl=en&as_sdt=0%2C48&q=imp...