I'm not going to argue with you. You may not be a racist, but calling a black individual such a word as you know what is not appropriate, needed, or tactful. It's at best inappropriate slang and at worst a degrading slash at a person's ethnicity.
And if you want to test it out, please do come to the US, live in South Carolina or Louisiana as I have, and call a black person that word. You carry out my experiment, you won't be posting on here anymore.
As for Tfat, he was trolling me, as he said himself. Maybe you didn't pick up on that? And if he somehow wasn't, his arguments were devoid of any proper citation or backing, thus his assertions were blind and trivial without evidence to back them up.
Edit: I also love how you yourself hic-up your vary thesis. ... Really, now? Please, I beg of you, sit back and read my posts, firstly, and then yours. If you can't see the irony and apparent hypocrisy, I have to wand you to be in self-denial, my friend.