The continuing stream of “critics” of fiat and, most of all, the dollar have one thing in common: almost none suggest that what’s behind the dollar/fiat is more political than it is economic. Non-democratic countries, foremost Russia and China, see only advantage in the undermining of USD and other western fiat.
The use of sanctions and other ways USD and western fiat constrain both the economic and political choices of the undemocratic/autocratic countries is what is at the heart of this phenomenon.
For this reason, those who promote the idea that this is something good or even neutral may find not only constrained in their ability to express their opinions freely, but able to make a living. All the more so if your a “believer” in the virtues of decentralized crypto-currencies. See China.