I think there's some truth to this.
And if you're willing to accept it for what it is, ask yourself about your own supply of money, what it is and where it comes from.
What are the current limitations if not gold any more?
And it hasn't been gold in quite some time, not just theoretically for a while.
How has that "unlimited" money supply worked out ever since?
Is there any other bottleneck somewhere that maybe is holding back that limitless supply of money from ending up in your pocket worse than if it was gold, which we know has always been so hard to come by that most people have never had significant amounts whatsoever since the beginning of time?