Whatever banks do, they will not lose the trust of some people, because the meaning of the bank is authority, the meaning of paper money is the trust given by the state. Western European countries with strong banks are in a different situation. In the Middle East and Asia, they have been exposed to many bank frauds over the past 50 years. As a result, the bank's hand is strong.
So the conclusion to this - the banking era will only stop when current "grownup" generation will extinct.
Statistics shows that most of the crypto market usership age is below 27 or something.
Answering the main question tho - crypto is part of global economy now as well as banks, so there is no clear correlation between loss of one and gain of another