I think there's good stuff in here and it's stoll relevant, but Rickards has very much likes trying to scare people with the worst case scenario.
If anything, I think the removing the US dollar as the reserve currency will strengthen crypto markets.
He mentioned 'permissioned' vs 'permissionless' but doesn't clarify that they [appear to be] referring specifically to the transaction validation process -- not the ability to use the network/currency itself.