It was the the Fed policy of raising interest rates to fast, that caused financial insecurity.
It was the banks who didn't hedge against rates going up! They assumed it would be 0% forever and didn't reduce risks. SVB didn't even reduce risks when the FED started raising rates. Blame the FED all you want as there is enough blame to go around. The executive branch, Congress, Bankers, Board of Directors, Investors, Depositors over $250k... they all had a hand in it.