I'd like to get back to the original idea in the OP. That Democrats deliberately torpedoed the Supercommittee.
The attitude here is "If they'd just agree with Republicans, it would have worked." If they agreed with Republicans, wouldn't they be Republicans? I don't know about you, but I'd rather have two parties than one. Truth be told, I'd rather have three than two, but I still think two is superior to one.
Of the one party states in history, most of them were not places where I'd want to live. The Soviet Union, Nazi Germany, Iraq under Saddam...
I say "Thank God we don't all have to agree." They still have to find a way to work together to get stuff done, but right now there's little spirit for compromise on either side.