The more I think about it the more I can’t see the difference between what we have today and your sarcastic example.
The highs get higher but the lows get lower and it all averages out the same in the end.
Making enough food to prevent starvation is literally a solved problem. We make more than the world needs and the only people starving are in that state because of government conflicts.
Fewer people die in wars. Fewer people die in pandemics. The Black Death killed half of Europe.
This purely pessimistic, nihilistic view of the modern world is as widely inaccurate as a purely optimistic one.
Is there any place in the developed world that treats mixing sewage into your water source as a viable strategy of providing municipal water?
Las Vegas is a 100% closed loop system. All grey water is recycled back into Lake Mead fur reuse.
Modern sewage treatment is a modern miracle.
That obviously isn't a complete detail of how it works, but what is inaccurate?
Anything that goes down the drain is then treated at a sewage treatment facility and is then dumped into a river/ocean/whatever. Sometimes it’s used for toilet water in large facilities like airports and they put warnings all over everything that it’s not potable because it came from sewage.
There are a few cities with cutting edge “piss to table” technology, but it’s not the norm. The closest you get normally is when an upriver city discharges into a river used downstream.