Just like not all Dems being hard-core Commies (Though some are), not all Republicans are on board with the TEA Party and its program. It's a huge mistake to think that the GOP Reps all are there representing the same kind of constituency or that they or their constituencies back home all support a take-no-prisoners Conservative agenda on fiscal, social, or any other kind of issue.
That said, the essence of negotiation is giving up something on both sides. Obama and the Dems haven't given up squat on social spending, and with two years until the midterms, I'm not sure who the MSM thinks will be blamed for going over the cliff will matter a hoot in Hell.