I think
Sundown Towns is a terrific book, but badly written. I just wrote a book, a sociological study. In writing it, my critiquers constantly told me that the book had to have a consistent "voice" throughout. That's where Loewen fails, in my view. And that's why I, too, had trouble sustaining an interest and actually didn't finish it. Somewhere it became argumentative and went off the tracks.
There is another book written about the same topic,
Buried in the Bitter Waters: The Hidden History of Racial Cleansing in America by Elliot Jaspin. Readers may want to compare.
Here is another one dealing with similar matters:
http://anteropietila.com/