The solution for that is to have redundancy via multiple bank accounts, ideally in multiple countries.
Then nothing short of planning a serious terrorist act can get you kicked out of all accounts.
Ah, yes, the classic 3-2-1 method: three accounts in two different countries, one of them being an offshore. Yeah, I’m doing all that (not the offshore part... at least not yet).
Is that really the case? Per https://www.bitsaboutmoney.com/archive/money-laundering-and-... you can be pretty much completely debanked for only a couple of SARs/STRs, and it doesn't seem particularly hard to have one filed against you.