As Romney is called out on these issues during the campaign he will be forced to weasel. That will drain support from those who don't know him well but know a weasel when they hear one.
Romney in the race might keep other rich RINO’s out of the race.
Romney serves a purpose.
Now, conservatives simply need to unite behind the “Anti-Romney” in enough time to make sure Romney does not get the nomination.
However, Romney IS better than Obama.