Sure it is true - the "business cases" for blockchain are all rubbish. But it is not for the reasons listed; there are no parallels to airlines or gold mining

Sure it is true - the "business cases" for blockchain are all rubbish. But it is not for the reasons listed; there are no parallels to airlines or gold mining and so on. Decentralization for cryptocurrency is about making them resistant to legislation: With properly decentralized cc you can pay your druglord, terrorist, launder money, gamble, insider trade, hype pump and dump a scam ... and the government can't shut it down or prove that you own any. That is the killer use case. And the only one.