There is a good book that, in some detail, covers the machinations of the right and left in regards to race. Negrophobia by Mark Bauerlein.
I would also recommend reading about the Dixiecrats and their relationship to the US Democrats to understand how the Democratic Party felt about blacks at the turn of the century as well as how, why and when all that changed.

The Republicans were once the viewed as the party of abolition and thus the party of free blacks (black vote in the South wasn't protected by law until the 60s).

Issues of race, particularly black protestations are consistently written out of existence by white commentators, and as the music catches on, by the population generally. Thomas Frank wrote a book 2 or 3 years ago, What's the Matter With Kansas, talking about the white revolt of working class folks from the Democratic Party. He blamed class, gender and sexuality as the reason. Like the thinking of some in this thread, he too saw race as having not large enough a profile to bear significant mention in his book. Although he does go into the resurgence of antisemitism within the Christian Right. It is only anti-black racism that Frank sees as not relevant enough to merit space in the discussion.
Tyrone Simpson of Vassar College wrote an article criticizing that aspect of the book. He titled his article What's the Matter With What's the Matter With Kansas. An excerpt:

Quote:

Frank's misperception of race relations in his home state particularly stings at the viscera because it attempts to write black grievances only out of the cultural war. If the holy quandrumvirate of race, class, gender, and sexuality provide the raw materials of the Great American Backlash, it is on the first factor that Frank elects to partially disavow. He gives clear evidence that Kansan conservatives can be antisemitic (in this era of passionate bible-thumping it would be difficult for such prejudices to remain dormant--if they ever were), sexist (one female activist sees woman suffrage as a sign of moral decline), and homophobic (it is a Kansan who crisscrosses the nation with the placard, "God Hates Fags"). In addition, in the moments when Frank's moral voice is most pronounced, he consecrates the Backlash as a legitimate working class response to the greed, pedantry, and secularism of liberal Americana. Yet the matter of anti-black sentiment, in the vivid world that Frank's narration paints here, dissolves before the reader's eyes like a dying myth that a haunted community, now courageous, has been finally able to lay to rest. How are all other issues in play but this one?

The political structure of the US, from its inception has been dealing with maintaining elite power over the masses. All under a facade of democratic rule. Because the disenfranchisement and hyperexploitation of a sector of the working class, has been with this country from the beginning, the enslavement of black people then Jim Crow segregation, this divide and conquer strategy has always been at the center of our political process though in the last 43 years we have witnessed a process of attempting to erase it from our collective memory by pretending other issues divide "us" (haha, us!!!!!) as if sexual and religious morality are the primary political dividers.

So you are declaring the entire Republican Party with the "racist" label because of a book about a race riot in 1906 and an article in response to another book about Kansas. The size of your broad brush boggles the mind!