Well, ultimately, I am reminded of the very last quote in that Wikipedia article:
"In theory, you, I and the columnist next door will defend to the death our right to say 'niggardly'. But in practice, will we use it?"
I feel we've done a good job in defending the use of language and education while condemning hypersensitivity and lynch-mob mentalities in regards to race. But, ultimately, it doesn't matter. We will lose in the grand scheme of things due to paranoid political correctness.
EDIT: Oh, and I sniggered at niggled. Maybe that's taking it a bit too far, but I honestly didn't even think of the implications when I initially constructed that sentence and only laughed about it after I made the realization that I was actually using "sniggered" in the context of this conversation.