It doesn't matter to me at all. I think the OP was hoping that the lefties would show some racist streak, and they haven't. On that level, the thread is a huge fail.
But then again, I'm reminded of the Karl Rove whisper campaign against McCain, in the South Carolina primary in 2000. That's where he pushed the rumor that McCain's adopted Sri Lankan daughter was a black love child. Considering that McCain was leading Bush in that state, and wound up getting trounced, one must wonder how interracial relationships plays with the fringe right.