The saddest aspect to this story, IMO, is that it won't actually be as damaging as it should be for reasons already mentioned. Fox has spent the entire day in overdrive furiously downplaying it, and American voters have already demonstrated a million times over they have no problem voting against themselves.
A candidate that has made as many mistakes and stupid statements as Mitt Romney shouldn't be within 10% of Obama.
Oh Marokai. A story like this is as irrelevant as Obama's "guns and religion" leak in 2008. We know Mittens is an asshole who thinks like my grandfather, that being poor is a choice, that the majority of people feel entitled, etc, etc, just like we knew Obama probably doesn't think much of god and looks down on simple country folk who spend weekends cleaning guns and shooting at tree stumps in their backyard.
This obviously was idiotic to say, but he was speaking to his target audience, probably who think like he and my grandfather, and that's what they wanted to hear. It's politics. It's life.