—What about the captain that flees on his own before the sinking, like the captain of the Costa Concordia?—
That would not work as an analogy to this. The ship has hit the iceberg and is going down. Heck, it hit the iceberg before obama was elected. Remember QE1. Remember the “emergency” meeting of Congress back then that some revealed scared the crap out of them.
They have effectively kicked the can down the road a few times, but they are running out of kicks.
I'm curious as to why you think he'd not finish his term. If he walks away, he'd be labeled a quitter like they did to Sarah Palin when she resigned as governor of Alaska.
If Obama stays and loses, he can still run again in the future for a second term (like Grover Cleveland). If he walks away from his first term, nobody will elect him again in the future.
-PJ