Your comment reads as if "crypto" is synonymous with "Proof of Work cryptos". Are you suggesting a blanket ban on all cryptocurrencies regardless of their electrical efficiencies, or specifically PoW-style mining?
Humans need to co-operate to survive global heating, we cannot avoid trust, we need to make it easier to trust each other. If you buy into cryptocurrency you are implicitly abandoning hope of humanity surviving this crisis, in fact you're hastening our downfall.
Shame on your defeatist, destructive attitude.
A unified, international ban on something is a nearly unprecedented achievement, apart from perhaps chemical weapons, and even then i'm not sure all nations had a seat at the table.
You also referred to cyprots as "evil" earlier in this thread. What specifically about cryptocurrencies has given you this strong sentiment? (To be clear i appreciate your passion on the topic, i'm legitimately trying to understand your viewpoint, if that isn't obvious).