How the hell did COVID, a period over which the dollar’s value has increased, reveal the USD as a scam? What COVID did is reveal what a currency actually is. I

How the hell did COVID, a period over which the dollar’s value has increased, reveal the USD as a scam? What COVID did is reveal what a currency actually is. It’s a bet on the reliability of the backers of the currency. In the case of the USD, that would be the US government and economy. BTC only has value because people don’t seem to understand this basic fact of a currency.