Our currency still had value back during the last depression. There just was not enough of it to go around. Now we have a fiat currency backed by nothing. Its not even real money as defined by law. Its an IOU… a “Federal Reserve Note” that can’t be exchanged for real money (gold/silver) but only for other “notes”.
Aside from the financial/economic factor, the real danger this time around will be from the social aspect. People are a lot different today than in 1930. That diversity rammed down out throats will be our undoing. Violence will be rampant and out of control in and near large population centers.