> In systems with a basis in technology, final means final. If the North Koreans take your money, your money is taken.

This seems obviously not true. If someone in New York steals your money then courts in New York can order them to give it back even if it's Bitcoin. If they don't comply then they get held in contempt until they do or the police seize their computer with the keys on it etc.

If the person who stole it is in North Korea then the courts with jurisdiction would be the ones in North Korea, which may not be to your advantage, but how is it any different from what happens after the money was transferred to a bank in North Korea? Or, for that matter, what happens if someone in North Korea has the stolen money deposited into a US account and then spends it before you get around to reversing the transaction?

The problem isn't what kind of technology you use, it's that someone can transfer stolen assets into a jurisdiction that won't help you get them back. Regardless of what payment system you use, they can get the same effect by using the stolen money to buy gold bullion or similar and have it shipped to them in their jurisdiction, and once it crosses the border they're not giving it back.