You are right the banks should be boiled in oil

But

ya takes ya chances?

Credit is important in a capitalist society. But there are limits. Remember, the banks "took their chances", lost hugely, and are getting credit at 0% from the Fed (the US taxpayer). They are abusing their obligation to pass that on back to the consumer at a reasonable rate (this is pure capitalism) and charging this "hidden tax" that no one talks about. Why is that do you think?