"Flaming racist" would be YOUR characterization of Wright, I saw no evidence at all that he was a flaming anything, his most provocative statement, "God damn America" was totally colour-blind as far as I could tell. "God damn whitey" is my idea of "flaming racism," but Wright never said it.
I'm more concerned with Sarah Palin's mentor, the late Westbrook Pegler, whose words she quoted in her acceptance speech. Pegler was an anti-Semite and a fascist who publicly regretted that FDR's would-be assassin missed his mark and later (1965) wrote that some Southern "patriot" would splatter RFK's "spoonful of brains" in public before winter began.