You're missing the bigger picture too. Silicon Valley Bank didn't collapse - it was bailed out with unlimited money from the bigger banks.
The only limitation the banking system faces is excuses to loan money (one of the reason long-standing wars that last for years are increasingly common - the banking system gets to fund both sides)
> it was bailed out with unlimited money from the bigger banks.
tell that to the equity owners of the bank.
There's no such thing as equity ownership anymore. The banking system has seen to that by slowly changing the legislation in every country around the world.
If it is indeed true that a bank could just print unlimited loan notes, then why did Silicon Valley Bank collapse? Wouldn't it be possible to just print themselves out of their troubles?