I am just thinking BUSD is backed by the dollar, and dollars are stored in banks and if/when the banking system is affected then how would that affect stable coins which are fully backed by the dollar. Even if you do have your balance proof on your hardware wallet, will you ever get that money?
BUSD is basically a USD on the blockchain so if the banking system fails then everything else that relies on this institution fails. Your BUSD will be worth like any other valueless paper.
Yes, and if USD fails, your cryptos aren't main thing to worry about anyway because everything will be in full blown chaos, internet as we know it will most likely shut down and there will complete anarchy takes over. Crypto most likely doesn't have value on this scenario as all people want is safe shelter, medicine and clean food & water. Working fiat money is the oil that runs the economy. Without it everything will spiral out of control.