I agree with Robert E. Lee. The Southern Confederate Congress was a waste of space, then again the whole secession debacle was a calamitous disaster waiting to happen. Fortunately, it's unlikely that history will repeat itself, regardless of the insistence from certain quarters that power should be devolved from Congress to the individual States.
The main reason that won't, or shouldn't, happen is that however big a financial hole the nation as a whole is in the individual State and local city finances are in a far worse condition. The only reason that some States haven't already defaulted on their obligations or been forced into bankruptcy is their ability to inherit the triple A credit rating of the Federal Government and the, perhaps misplaced, belief of their creditors that the Federal Government will automatically bail out any City or State that defaults by borrowing money.
It'll end in tears.