I also find it rather suspicious
Sometimes banks just refuse to work with a certain client on their own, for whatever reason (e.g. you successfully sued them in the past or something to that tune). I don't know how legal are such refusals overall, and whether they have the right to send a client home, but I've heard about similar cases myself. Unless your funds get arrested for doing something illegal or due to debts, the bank would just return you all the money telling you not to come back again. But that doesn't seem to be that case here
I guess you somewhat hit the point. I did file complaint against my bank at CFPB years ago. The bank had no monetary loss and only answered with a letter. But I totally didn't expect they could have gone so far to close my account and dump all my funds this time.
Reading all through from the first page up to this your comment, I now understand that it is not that the bank closed down but its your account that was closed based on that, I expect them to return your money to you since they are not interested in doing business with you again. This is one of the issue I have with systems as everywhere is so corrupted that one does not even have anyone to turn to as you cant even get justice anywhere. What I will suggest is that if you still believe in the justice system just get a lawyer beyond the locality and sue their ass off.
As I said, it would require tremendous effort to change the situation, probably revising the laws first. It's been over a year since my money was robbed by them and how do you expect robbers to voluntarily return your money? That's why I started building a blockchain and hoping it can change the financial landscape of this world.