And I would really want to see the banks not handling all the information to the government if they did decide to do that, do you? Or do you think the bank CEO has the encryption phrase in his pocket and he will swallow it once the feds storm the building? Besides, it will fall into asset forfeiture, and not disclosing or trying to prevent the authorities from touching it will end in a criminal charge.
Of course I don't want it either, hence I hold my coins in self-custody. But then again, there are A LOT of other people out there outside our tech-savvy cryptocurrency bubble group that might want to take advantage of bitcoin's market characteristics(not necessarily the privacy and sovereignty characteristics).
The point here is freedom of choice. If they want to go let the banks hold their bitcoin knowing the risks, then let them. Doesn't mean that we also should follow suit.