Earlier quoted context omitted.
Pointing to the list of failed banks from the website of the government agency that insures them and makes customers whole doesn't convey as strong of a point as you might have intended.
> makes customers whole *As long as whole is less than $250k.
In the case of WaMu in 2008 for instance, the OTS took possession of the bank and sold it to JPMorgan Chase. They didn't draw on the deposit insurance fund and everyone stayed whole. [1]
"According to FDIC spokeswoman LaJuan Williams-Young, 'No depositor has ever lost a penny of insured deposits since the FDIC was created in 1933.'" [2, 3]
[edit] Looks like I found one case where a bank failed and a total of $500,000 in uninsured deposits (not in a single account, in total) were forfeit. [4]
[1] https://en.wikipedia.org/wiki/Washington_Mutual
[2] https://en.wikipedia.org/wiki/Federal_Deposit_Insurance_Corp...
[3] https://www.magnifymoney.com/banking/deposits-bank-failures/
[4] https://www.depositaccounts.com/blog/bank-failures/#p21332