Oh no people might continue putting money in bank deposit accounts at banks regulators have said are solid, we definitely don't want people doing things so totally unnecessary and crazy.

what are the implications of a bank that cannot fail no matter how reckless it is with everyones money?

The bank is already shut down, dead, gone, past tense. It's shareholders are wiped out, as they should be. Nobody is calling to save a bank that doesn't exist anymore. We're talking about the depositors. I think this has been confusing to a lot of people.

you're calling for the state to insure 100% of all deposits?

Only when the depositors have lobbyists on their payroll ;)