The global economy is built on confidence which is derived from trust in financial institutions and whether governments act economically reasonably. It's not a

The global economy is built on confidence which is derived from trust in financial institutions and whether governments act economically reasonably. It's not a matter of whether there's other banks that can take on the business. It's a matter of government intervention to that degree would rock confidence and cause a negative shockwave through the markets, which would most definitely affect you no matter how much or how little you have invested in the bank in question. New backers for loans made to the largest corporations and countries on earth, easily reaching billions if not trillions of dollars would need to be accounted for and reorganized. A primary source of funding for housing, infrastructure projects, etc. would be eliminated. I think you fail to see how deeply entrenched the largest financial institutions in the world are with modern society. Our governments literally depend on them to function because of the complexities of globalization.