excellent point about the liquidity issue, a slow but steady 'run on the bank' as money flows out to crypto exchanges and beyond. The banks still allow the use of debit cards so they haven't stemmed the flow completely - yet - though I think they will still try new ways to cut the flow.
for now the blunt force scare tactics are working, people are bailing out and the price / value of the currencies drop and more people bail out. once prices find a new more solid higher low than last time the process of new money going into cryptos will again exceed the outflow and price / values will again resume their upward movement again attracting in more and more people looking for the quick road to wealth again.