> SEC regulates the entire US banking industry

It pointedly does not.

The kind of risky behavior that caused the 2008 crisis would have happened a lot more often if the markets had been regulated as poorly as crypto. There would have been a 2008-style crisis every decade.

What happened to banks in 2008 demonstrates the value of the regulations and other systems we had in place. Some banks did fail, but depositors didn't lose money because of the FDIC insurance.