I don't see how that sign expresses racism, veiled or otherwise. After stating that you don't generalize about Republicans or Democrats, it seems like that's exactly what you're doing. Obama (yes, that's what he uses on his own signs) is the incumbent candidate. So that's who we are trying to defeat. Why must it be stated any differently? It's his policies and character that are what the majority of his opponents object to. I suppose there may be some who object to the color of his skin, but I haven't met any within the Republican party.