> Perhaps you deem this a stupid question? Not sure from your comment. Still, we have to be able to ask stupid questions or we don't learn.

Ok I agree here.

> Well, what is it then?

Banks connected to the political/government controlled currencies tend toward corruption. Banks are part of corruptible scheme. Humans are too greedy with the power of money control.

History backs it up over and over again.

> Banks <snip> tend toward corruption.

Can you give examples of this in modern first world economies? I am sure there are plenty of examples of banking issues and corruption in third world countries. I am interested in understanding your conclusion that banks tend towards corruption. In other words, it seems you are saying that all banking asymptotically (and inevitably?) end up on the corrupt side of the equation. Not sure I know how to identify that or point out examples myself. Can you help with this?

History just shows that the insanity of not being able to represent a saturated market (negative interest) with your money system leads to war where people try to get rid of market saturation.

The broken window fallacy is an answer to getting positive interest in an economy that isn't growing. They are both equally illogical and for the same reason.

The idea of a god given right to 0% interest is the reason why currencies collapse and Bitcoin is sharing that flaw instead of getting rid of it.