He missed one of the biggest ones of all — that Southern Republicans and conservatives are responsible for the KKK and repression of black voting rights. The Dems have spewed this propaganda so effectively that Goebbels would be proud.
Or how racists in the South supposedly forsook the Democratic party after it radicalized in 1972 and transferred their bigotry to the Republican side.
Only in the fevered imagination of Morris Deas & Cynthia McKinney.
The “Solid South” was racist for as long as the region was absolutely dominated by Democrats. FDR himself never laid a glove on it (he let Eleanor do that), and kept their undisturbed support until his death.
The Republican party in the South is far more inclusive than the Dems ever were.