This is a disingenuous take. The green paper is a certificate of debt backed by the US government's full faith and credit. The dollar has value as long as the US government accepts it as payment.

Similarly, the number in the bitcoin wallet has no value itself and is backed by greater fools. If you believe greater fools will continue to increase in number over time then bitcoin is a good bet I suppose, but there's a reason the price is so ridiculously unstable.