Peter Schiff states that Bitcoin has no value, then he explains why the world needs Bitcoin.

He acknowledges that money can be anything people in aggregate agree to use as money, from rai stones to glass beads to shells to salt to gold to fiat, but he opposes the idea that people may want to use a global decentralised incorruptable ledger of account that can facilitate instant transactions and a guaranteed supply.

Its Peter against the global free market. Just because he doesnt think the world will adopt bitcoin as money because he doesnt see its value doesnt mean it wont happen.