It does appear Romney is going to be the candidate. If people, especially Conservative feel the way you posted, then the country is surely lost; even if Romney wins w/o their votes. If they can not see the real and present danger 4 more years of obama poses, and the ability of a Romney presidency to at the very least slow down the accelerated slide, then there is no hope.
At the very least, the next president will get to place one, if not two Supreme Court Justices. We know what type of judge, and I use that term loosely, obama will nominate. That alone should be enough to make even the most vehement anti- Romeny Conservative take notice.
What makes you think Romney would nominate conservative Justices?
His track record, as well as the track record of previous moderate Republican Presidents, argue against such an appointment.