They have that mechanism! It's the Fed stepping in to magically make folks whole even though they don't have the requisite insurance. Insurance only works when it can average over lots of smaller events. It doesn't work well for things like this where this are very infrequent very massive events. So there cannot be insurance for bank failures like this. Instead, the capitalists have access to the money printer and will hold copy when shit goes wrong like this.

Maybe? I don't know as much about insurance, but they would still rely on banks to pay out claims like this, which would just cause a bank run somewhere else. The whole reason this is going so fast is that it's not supposed to happen with regular deposit banking. Banks are supposed to have way better risk management than SVB and Signature, but that's also not necessarily regulated. I would think that this is going to have to result in new regulations, but the fact that the Fed is saying that SVBs shareholders and creditor can get fucked might mean that the industry is going to start requiring new controls internally.

Or nothing will change and the industry and politicians will waive it off as an aberration. It's pretty hard to say.