How is owning and trading cryptocurrency akin to dumping oil into a river? That’s a weird analogy. Obviously, the river is a public good that I share with others, it is not mine to pollute.
Banning cryptocurrency is not just “some restriction”. It is an authoritarian violation of my property rights.
> The environmental impacts of cryptocurrencies have been discussed at length here on HN and elsewhere.
The environmental impacts of cryptocurrency are not worse than any other economic activity, because any human activity requires energy. You are picking and choosing which activities are "bad for the environment" for purely political reasons.
> reining in war crimes is a public good, and sanctions are not yours to violate
Every war is a crime. These "sanctions" are also a crime and they are ruining the lives of innocent civilians who have nothing to do with the decisions of their government.
You are willing to give up your own freedom and comfort for the war effort and trying to enlist everyone else into your war.
Is it possible that a "free world" may still have some restrictions on actions that have impact beyond the individual making them?