The Republican Party already got graded in the last election, and the American people rightfully pushed the NeoCon agenda out of the White House and Congress.
The Republicans need to return to fiscal conservatism...and keep the Democrats spending in check.
They can only be a part of the solution if the majority party allows them to be...both sides are reverting to partisan maneuvering, and without the votes to truly oppose the Democrats, they really have no incentive to play along with the Congressional spending spree.
The Democrats get elected to try to fix things...and the Republicans act like a bunch of spoiled brats...and have to be dragged along, kicking and screaming the whole way.
The minority party should keep the ruling party in check, and not go along with every policy decision.
You talk about how the Democrats always get close to fixing things, and then there is a change of power. There is usually a change in power because the American people grow tired with one party's solution, or the ruling party starts to abuse their power.
How can either party be part of the solution when BOTH are part of the problem.