I think we are WAY more damned if he does win. We're not in the 1970s anymore, and racial strife in response to an Obama loss will only appall the nation as a whole. People are getting fed up with this race-baiting stuff, and I think any overt acting out by angry black mobs (if in fact such a thing actually happens) will backfire terribly. The biggest loser will be the Democrat Party, and that can't be a bad thing.
There will be some element rioting no matter who wins or loses...screw ‘em.