Solarpunk

Logistics is complexity in action. Supporting infrastructure is equally complex. It was the consolidation of so many industries into a global supply chain that only has a few players that makes the present cost effective. The forces at play are far greater than you realize in scope and scale. Your pitching a post civilization dystopia of death and misery. It's bearings, chemistry, metallurgy, medicine, the list goes on and on.

The future you want will exist a long time from now, but not in the way you imagine it. Biology is the ultimate technology. It is where we are headed a millennia from now. Once the age of scientific discovery is long past and science is nothing more than an engineering corpus, a complete mastery of biology will mean we can create ecosystems with all life and technology existing within elemental cycles balance. At that point, human life will likely simplify in many ways and evolve in others.

Simplification is always regressive and backwards. When complexity seems insurmountable, the solution is to refine and reform. In science, eliminate all the ridiculous names associated. It's not Maxwell's equations; they are the magnetic equations. Reform stupid conventions like using the term light speed to mean the speed of causality. We need massive educational reform at all levels accounting for the wellbeing of career educators while also modernizing to account for video recording technology. We need to make housing a fundamental unalienable human right and the exploitation of survival needs like food and housing should have massive consequences.

But no, pushing against complexity is nonsense. It shows you're naive of the use cases. I recommend you start daily watching Anton Petrov on YT or Odyssey. He covers a white paper research summary daily. You'll learn many applications of technology and this complexity. Watch Frazier Cain for more depth on present astronomy, and watch Isaac Arthur for a view of what a distant future might look like. Read Asimov's books like The Caves of Steel and The Naked Sun to see a glimpse of a realistic future.