Western societies should just ban the purchase of cryptocoins by deactivating the fiat onroads - it will provide a necessary boost post-pandemic from reduction in the ransomware attacks, savings in electricity and chip waste from mining, reallocating tech talents to productive areas of the economy, and making money laundering (including sanction evading) more difficult.

Sure, the coins will keep trading in Belarus or El Salvador or somewhere, but at a fraction of the value, and the overall objective will be achieved.