You can just impose fines on organisations for accepting payments in cryptocurrencies — that's it, problem effectively solved! Paying in cryptocurrency becomes as "easy" as buying illicit drugs or guns.
In countries with freedoms and rule of law you can exclaim: "But muh rights, you can't do that!",— doesn't work in the non-free regimes, they do whatever they deem fit and don't ask you about your rights.
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