No, that’s simply not true. I encounter plenty of people who voted for Obama and who now will vote for Romney. In addition, in 2008 you had high turnout among blacks and youth. I can say with great confidence as a college teacher that there will be a huge drop off in the second group, and we have good evidence that the black vote will revert to 2004 levels. Finally, despite the concerns about Romney, I don’t think GOPers will stay home or switch as they did in 2008. Example: in 2008, we examined a precinct in suburban Dayton that should have been close to 100% GOP-—about 1/6 voted for Obama. One GOP officeholder learned that 4 of 5 of her kids voted for Zero. That stuff will not happen in 2012. And, yes, that stuff adds up to a crapload of votes.
If I ran into a pushy Freeper hyping Romney, I think I’d humor him along just so he’d shut up ~ and I vote Republican.