That feels like saying stealing food is a permissionless new way to get food. And I'm not at all convinced that the governments of the world could not regulate

That feels like saying stealing food is a permissionless new way to get food. And I'm not at all convinced that the governments of the world could not regulate blockchains, or their use, if they wanted - either in ways like outlawing it, or auditing / regulating / taxing companies which use it, or pressuring insurance companies to put limits against insurance cover, or numerous other ways.