What caused all the supply chain bottlenecks? Modern finance with its obsession with "Return on Equity."
To show great ROE almost every CEO stripped their company of all but the bare minimum of assets. Just in time everything. No excess capacity. No strategic reserves. No cash on the balance sheet. Minimal R&D.
We stripped the shock absorbers out of the economy in pursuit of better short term metrics.
Big businesses are supposed to be more stable and resilient than small ones. And economy built around giant corporations like America's should be more resilient to shock. However the obsession with ROE means that no company was prepared for the inevitable hundred year storms.
Now as we're facing a hundred year storm of demand, our infrastructure simply can't keep up.