This is exactly correct, and also exactly why blockchain-based cryptocurrency has utterly failed to deliver on its promises to bring freedom from the tyrannies of fiat currency. In fact, the technology has been pivotal in ushering in this CBDC madness. Returning to the gold standard was always the best solution available, and we just ignored it to our own peril. It preserves both privacy and universal acceptability, which provides the user far more freedom than any other available alternative.