You are talking about an extreme edge case situation, where the entire world declares crypto to be illegal. I will agree that in this situation, crypto is prob

You are talking about an extreme edge case situation, where the entire world declares crypto to be illegal. I will agree that in this situation, crypto is probably dead. The much more likely scenario, though, is that a couple countries try to make crypto illegal, and other countries don't, and the decentralization of crypto makes it very difficult for the attacking country to stop it. The banning country isn't going to be able to target miners in other countries or take down exchanges that aren't located there. Crypto is still useful in this much more likely scenario. Think countries like Venezuela. They don't want people moving money outside the country, and yet people are doing that right now, with crypto, and the Venezuelan government can't stop it.