Debt cycles would be one example that's not a policy decision. https://youtu.be/SoKr0QVCLPA?si=kKcXNetb-kAPr1S8

Edit: having said that, "these economic problems are ENTIRELY the result of bad policies". That's a very bold claim, which warrants some strong evidence. No one has provided any strong evidence that it's ENTIRELY from bad policies.

Re: your EDIT - fair enough, thanks for the additional information.