It doesn't even do that properly, because there is no guarantee of service given by the system. Miners could just decide that they don't like you very much and refuse to process your TX. Or they could conspire to blackmail you: "pay us or your tokens are useless". Sure, someone might be willing to process your TX, or you could try to do it yourself, but that might take a long time or it might fail altogether.
Furthermore, as the Ethereum rollback has shown when the original "DAO" was hacked, the vast majority of crypto project have some sort of backdoor that can and will be used.
The only thing crypto "solves" is oversight by governments, and the people who are interested in that the most are criminals or actors who have been sanctioned like North Korea or Russia. Somehow, I don't quite see the value in that.