This is a rather skewed perspective that ignores the fact that if you have FDIC insurance for depositors then that can be gamed unless you have strict regulation of the banks:

> "The roots of the S&L crisis lay in excessive lending, speculation, and risk-taking driven by the moral hazard created by deregulation and taxpayer bailout guarantees."

https://www.investopedia.com/terms/s/sl-crisis.asp

This is why a lot of people worry that Silicon Valley Bank, First Republic, etc. might be the tip of an iceberg. If they've all leveraged themselves on risky speculation bets in the hopes that they'll get bailouts if it all goes sour (even though depositors greatly exceeded FDIC insurance limits) then you could have a domino situation.

Note also that it's a perfectly good way to run a bank as long as you don't get greedy and go for big risky bets, but the only way to ensure bank managers don't get the Las Vegas bug is to enforce the banking regulations in a fairly strict manner.