The first comment was him quoting other people's words, and a watermelon smile is a simile, like grinning like the Cheshire cat.Describing black people as flag waving piccaninnies with watermelon smiles is not racist then?
But I will agree that when he talks about problems that touch on race and religions that he has issues with, he should pick his words more carefully - to avoid the legions of tossers who scream racist over anything he says, irrespective of the accuracy of his comments.
He isn't sensitive enough to the hyperactive critical overdrive that brimming and frothing left leaning supporters can get into, whilst ignoring the severity of the,issues he's addressing.