I have only a very thin recollection of the Settling Accounts series. I did not read them.
I guess reading what you mentioned could be cathartic. ;-)
Oh, not much there. The South loses WW I, and an embittered artillery sergeant becomes absolute dictator during the Depression, invades the North and sends blacks to the gas chambers. A group of black partisans join forces with some escaped Northern aviators and raise hell in the country side. During one raid on Plains, GA, they gun down a freckle-faced youth named Jimmah! Other than that, it wasn’t worth reading.