Any particular reason you leave out Huckabee and McCain also being disasters for the GOP and for Conservatism if either of THOSE two would get the Repub nomination, too?
Huckabee wouldn't be offensive to the evangelicals who would likely make up a lot of the possible defections to the CP. Huckabee's economic politics might not be completely to conservatives' liking but his pro-life credentials are unquestioned. McCain, likewise, has been a reasonably good ally in most social issues. I don't sense the hardcore animosity toward either of these two among the evangelicals that is seen for Giuliani or Romney.