Earlier quoted context omitted.
FDIC rescuing a bank doesn’t involve money printing. Since the bank still closes and can’t offer new loans, it’s slightly deflationary.
The events of the bank closing may be deflationary. The giving of now-gone money to the depositors is inflationary. The fallacy of your above statement is you're considering the system of 'fail, then FDIC pays out depositors' when in fact the alternative is 'fail, depositors eat losses'. The former is inflationary relative to the latter, and in fact punitive to those who chose banks that didn't fail. The net differen…
Though the US could've used more inflation at any point up to 2021 considering our inability to ever get unemployment low enough. (since they're theoretically more or less directly related)