It proves a point. They can't win without our support.
If we are successfully recognized for Romney's loss, and guarantee the GOP never wins another presidential election, I see three scenarios happening:
1) They are more accommodating next time because they want to win
2) They won't be more accommodating, will look like idiots again when they lose, and the few who see this come to our camp
3) They won't be more accommodating, will look like idiots again when they lose, and noone will notice, and just continue to lose over, and over, and over
In scenario 1, congratulation, you successfully co-opted the GOP.
In scenario 2, congratulations, we just got more support, and will continue to get more support with each election, and we just broke the two party system.
In scenario 3, it doesn't matter what we do at that point, stay in GOP or not, this country's *fucked* if those idiots are that dead-set on their war-mongering trillion-stealing corporatist police-state ways