He could actually be true, once cryptos are widespread and cash is abolished, goverments will be able to monitor all transactions, how much you make, what you buy, where you work, where you travel, how much taxes you have to pay, no more privacy at all, everything will be in the hands of few bankers and oligarchs.

http://www.zerohedge.com/news/2017-10-21/crypto-currency-calm-storm