I have seen some of her videos regarding those leveraged derivatives exposure of banks.
There are many videos from other sources which are quite persuasive with their arguments but not confirmed by market reactions. I am not an economist and I can only superficially inform my self on the different types of economic models but I don't buy the Armageddon scenario because it is very toxic on the way I try to seek opportunities in the equity markets.
Goldbugs which I associate with a dogmatic view of the monetary system or gold bar hoarders ONLY, are constantly banging on about market crash, useless fiat of back to the gold backing and have missed the biggest bull run in the stockmarket.
The monetary system works in the sense that social cohesion did not break down from GFC and the wheels of industries continue to power along. That does not mean I am not aware of the risks with market premium valuation in equities or another GFC style destruction that can happen again.