Until Republicans clarify their principles and then act consistently with those principles, they will just continue to flounder.

Actually, I think they have done exactly that. When they took over the House in 2010 they said they would focus on jobs "like a laser". Since then they have introduced ZERO jobs bills, and stymied attempts to bring any to the floor. Meanwhile they have introduced LOTS of bills on abortion, guns, family relationships, and religion (among other non-jobs topics).

Their principles and agenda are crystal clear, IMO.

You're wrong about the "Keynesian nonsense". Europe is only now just realizing that cutting spending has only made things worse over there. As it did in the US between 1929 and 1932 (IIRC). It sounds like they are looking to try stimulus spending instead to staunch the bleeding. As we did in 2008, albeit not very well.