This is a call for community and durable systems that serve the human instead of traditional systems built to aggregate and funnel capital to a few. The fertility crisis is a capital crisis (taxpayers needed to pay back debt issued today decades into the future, workers for corporate profits), not a crisis for the individual. I see it as an exciting opportunity to maintain and improve quality of life for humans while solving for decoupling from these suboptimal systems primarily built to extract and exploit. Solarpunk vibes.

https://ilsr.org/ is one resource, there are more.

(to your food example, the US harvests land the aggregate size of the state of Oregon just for biofuels, ethanol and biodiesel; this is, arguable, unnecessary, and there are many other examples of unnecessary economic activity that can be deprecated)

I could rant about the stupidity of spending fossil fuels, to grow biofuels, for no net gain in energy. But with a definite cost in engine wear.

That said, like Democracy, capitalism is the worst economic system, except all of the others that have been tried. And there have been enough alternate experiments that I wouldn't want to literally bet my life on the next one working better.