I would humbly suggest that it will not matter if the GOP is firmly positioned against Obama or not. He has shown himself to be more than willing to make laws by executive order and policy directive. He has no regard for Congress or what they want. Exactly how is giving him another four years supposed to be a good thing?
Either way, it is not a good thing because as soon as Liberal Romney is nominated - 2012 is lost. Then it is a matter of 4 or 8 years to make a comeback.
If Liberal Romney loses, then Conservative Ryan could be effectively running for president in only about two years.