maybe they can cooperate with crypto but they must be prepared to lose some of their profits even though the profits of others will increase.
because basically we all already know that crypto has a decentralized nature. from this alone the bank can no longer interfere and it will be very difficult to track the system that is in the bank and crypto is different.
on the other hand, there may be several banks that have started to open up and collaborate with crypto. but it's just an alternative payment method and an option other than that the rest is to increase the centralized currency