We did just fine living with nature in a preindustrialized society. As soon as we became industrialized, we began consuming more and more, having just as many babies, and the ability to postpone death came with it. That allowed people to live to older ages, and more of the babies to survive their first couple of years - and to become adults - and breed themselves. That's what got us out of the equilibrium we were in, and what caused massive overpopulation, and what will drive us to extinction. Even in natural ecosystems, destabilizing it causes some populations to go away or become extinct and cause other populations to over-produce. Like it or not, humans are another species within the ecosystem, and subject to the same rules and trends.

Like a good story, there is a beginning a middle and an end. Existence is no different. The final product of evolution is extinction.