Earlier quoted context omitted.
Steady states are the exception in nature, not the rule. It's quite normal to have a population that increases exponentially, hits resource limits, and then decreases rapidly. (This was like literally 1/3 of my calculus class - it's a pretty classic example for coupled partial differential equations.) Eventually the population declines enough that the resource limits no longer apply, and people start having babies ag…
So your... plan... is to wait for Western civilization to fall, and have the survivors return to traditional society amongst the abandoned buildings of the dead empire? Your best case scenario is population collapse, but to do it without disease or conflict? Just everyone peacefully getting old and dying without having children?
Oftentimes, what's good for the empire isn't good for the citizens of the empire. So yeah, I'm happy to leave behind the wreckages of a dead empire if it means more for the people in that empire.
Unfortunately, I'm guessing that we'll get the war, or the pandemic, or both. That's how things have historically ended.