White Lefties go nuts when black Americans leave the plantation. They act like Simon Legree. h/t to Driscoll's Frank Rich Covers All The Bases
Related: Taranto's Why the Left Needs Racism - It serves a political purpose.
Also, at Tiger: Race as a political weapon against the right
Image is Tom's Final Beating, from the 1853 Illustrated Edition of Uncle Tom's Cabin. Tom has been a hero of mine since I first read the book in junior high school. How "Uncle Tom" became a pejorative is beyond me. His infraction, if you recall, was to refuse to whip the other blacks to "keep them down."