1. Proof-of-work has inherent, fundamental, no-way-to-work-around-it issues regarding scale. The more value Bitcoin holds, the more Argentina's-worths-of-energy that is needed to keep it secure. That is by design when it comes to proof-of-work. It is a guaranteed dead end. Proof-of-stake does not have that same problem, but ironically I see so much antipathy towards proof-of-stake by large swaths of the crypto community.
2. The fundamental idea that crypto can "escape" government financial controls is false. Or, at least it's no different than the fact that selling meth is also capable of evading government controls, but at huge risk. Government can make anything it wants illegal if it so desires.