If the Republicans want to campaign on a platform of repealing "Obamacare," let them!
At least, that seems to be the president's current thinking. And since practically everyone, including our very serious media, has adopted the "Obamacare" moniker, he might as well own it.
“I have no problem with folks saying ‘Obama Cares.’ I do care. If the other side wants to be the folks who don’t care, that’s fine with me.”
The president will not shy away from his vast array of accomplishments while running for re-election, and as the recent deficit debate clearly demonstrated, it's better to use the Republicans' own arguments against them than to go against the grain.