To big to fail doesn’t really protect them if they lose their costumers. A bank with tons of customers that’s bleeding cash due to a market crash is salvageable

To big to fail doesn’t really protect them if they lose their costumers. A bank with tons of customers that’s bleeding cash due to a market crash is salvageable(and remember the investment in bailing them out payed off), a bank that’s bleeding cash because it doesn’t have any customers is not salvageable and no longer “big”, so it will fail.