Except that they aren't banks, and so there's no lender of last resort to backstop them. [1] There can't be any assurance that depositors would get all of their money back in the event of a bank run if the money isn't backed by actual dollars or a lender of last resort.
Well… I’m not expert on DeFi or anything but until the 20th century banks existed and didn’t have this right? But yes, there were runs on banks… but there are no runs on CDs right, and that’s a banking product also? Why not? Well, they’re contractually wrapped up for a time period. What if all DeFi lending is/was similar and crypto contracts locked them up for set periods… would that be an OK and legitimate system then? If not why not?
Except of course, that the crypto world insists that all these cryptoinvestors borrowing crypto to buy other crypto to sell for more crypto to repay their original crypto debt is an ecosystem which isn't [even more] dependent on inflation of the crypto supply.
That and unlike stablecoins the Fed doesn't pretend it's fully backed.
https://en.wikipedia.org/wiki/Lender_of_last_resort