Earlier quoted context omitted.
The whole economy is powered by belief. No bank would be able to handle a bank run.
Yes, but the government can. The 2008 crisis didn't happen in deposit banking, but it was effectively a "bank run" in the same sense you're talking about -- all the assets banks could normally use to draw on to meet obligations froze up, and they ran out of money. And the government stepped in, becoming a lender of last resort. And it worked (not well, maybe, but it worked). Saying "the economy is powered by belief"…
Obviously we don't have the alternative universe where President McCain opted to do nothing for comparison. But looking at the economic boom we're living in 10 years out, it's difficult to make an argument that the government's handling of the housing crisis was poor. I have a hard time coming up with an outcome more ideal than what we got.
2008->2018 was a much nicer decade than 1928->1938.