Sad you think that way. Rudy, McCain, WHOEVER the GOP nominates has NO chance in NY, PA, CA, etc. And you are going to have to get EVERY vote in those 'red' states and can you assure that Rudy or McCain, etc. will keep those votes with the conservatives??
Take a look at who the democrats picked for this year's elections. In my district, John Hostetler lost to a Democrat who said during a debate that he would have voted the same way as Hostetler every time, including the votes on the war. The only point of disagreement was minimum wage.
Most of the new Democrats elected were conservatives Hillary/Obama swings the ballot too far to the left.