I still don't think it can be stopped even if Govt wants to. Not denying your points but If it can be stopped it would have stopped by now. I will save this thread, we will came back a decade later to check :)
Governments do not stop or ban something just because they can. They need a good reason to prompt them to act.
So far crypto is mostly irrelevant so there is no reason to bother. A country that actually has a practical reason to perhaps put a stop to it is China because they have currency and capital controls and crypto allows to bypass that.
