Hope you enjpy 8 years of President Hillary, then......
The choices are not the Rock vs. the Hard Place, despite what the Rudy/Romney/Condi supporters--and the McCAINiacs--keep telling us. The GOP has enjoyed great success by putting forward social conservatives, and whenever it has failed to do that--as in the case of Arlen Specter--it has suffered. Romney's real problem is not that he's a Mormon. It's that he's a BAD Mormon. Social conservatives would be far more likely to support a Mormon who was true to the family-friendly principles of that faith than they would be to vote for a guy who is just a typical Massachusetts politician with a slight bent toward thriftiness.
I'll take her over a RINO. She'll face much more opposition for policies that anyone with an R after his name could get away with much more easily. And especially if she gets elected without a majority (and with a majority voting for conservative candidates), she'll be completely without a mandate.