That is BULL EXCREMENT. By all means, crawl over broke glass to vote straight conservative downticket.
But voting for Obama is as nuts as voting for Romney. There's another alternative. I remember what happened to Clinton when 57% of the vote count was against him, and he won on a 43% plurality. He got his ASS KICKED in the mid-terms. I am voting against liberalism in the General because it is the best way to make my vote, an oar in the water, steer the course such that whichever socialist wins, Obama or Romney, wins on as piss-poor a plurality as possible, with a vote count where well over 57% of votes cast, were cast in opposition. It would be a blow to the political gut, power-wise, for whichever liberal statist gets the White House.
A vote FOR Obama is an exceedingly stupid vote.
If this was 1992, and there was a 3rd party candidate that had a significant fraction of the vote I would do as you say. But it’s not.
And that’s not the only thing informing my vote. I truly believe that the USG is about to “hit the wall” financially. I would prefer a Democrat to be in the drivers seat when that happens.
So Obama takes the blame, we teach the GOP a lesson about acceptable nominations, and a crack at a conservative in 2016 to rebuild the economy. Triple play.