I hear you, but don't you think it's interesting that Hollywood can't put out a movie about the South without an obligatory Klan or redneck-racist subplot or reference, however brief?
Well, Hollywood is full of pretty simple folks but the plot line in Harper Lee's book required a bit of it to work. As for gratuitously adding it to every movie that includes scenes south of Baltimore it does seem over the top. A few years ago I enjoyed Ken Burns' documentary about the Civil War. I looked forward to his work on Baseball. When I started to watch the baseball documentary I realized that, In Burns' mind, rascism was a bigger factor in baseball than it was in the Civil War. I gave up.