God help us all!
Maybe, though I hope not. A McCain-Hillary race (or, for that matter, a McCain-any Dem race) would clearly be a lose-lose proposition. However, one "lose" isn't always equal to every other "lose."
That choice would be akin to having to decide between amputating a finger and amputating a leg. Neither is exactly what you'd like to do when you wake up in the morning, but one of them WILL happen. Smart people will take the one that is less bad.
Look, I despise McCain as much as the next person, but realistically he's going to make our enemies fear us. ANY of the Dems will be busy negotiating how much to pay those same enemies to leave us alone, and all that we'll have done is to fund their purchases of weapons to be used against us later. He'll positively SUCK on immigration and basic rights, plus (imaginary) global warming and health care...but would the She-Beast be better? Puhleeze!
The fight between Rudy, Romney, Huckabee, Thompson and McCain is a family fight. Once one of them wins, everyone in the family should pull together to fight the common enemy. Once that enemy is vanquished, we can (and certainly will) resume our family squabble. Politics is the art of the possible - and NOTHING is possible for us if a guy with an "R" after his name loses in November.
Here's what everyone whose favored Republican loses in the nomination fight has to ask him/herself:
Who do you want picking Supreme Court Justices, any of the 5 Republicans or Hillary?
Who do you want running our foreign policy and the DoD, any of the 5 Republicans or Hillary?
Who do you want leading the Congress on the issue of taxes, any of the 5 Republicans or Hillary?
Who do you want to pick the Attorney General, who is in charge of BATFE, any of the 5 Republicans or Hillary?
Etc., etc. The point is clear - the choice in November is between someone who will give you maybe as little as 50% of what you want (policy-wise), vs. someone who will give you virtually NOTHING of what you want. CHOOSE!!! Oh, and not choosing is also a choice.