I feel where he's coming from, however, my biggest gripe from that generation is that it's intellectually dishonest for them to act like the appropriation of the "n word" in the black community is new. Like it's "our" generation that just decided "hey let's start using the n word to describe ourselves as a term of endearment....mmmmkay?". It's not.
I know for a fact, that at least in Birmingham, AL, it was used by black people at least during the 30s onward, certainly well into the Civil Rights Movement, and down here MOST of the old people who lived during that time, went to those marches, and faced that raw hatred.....use the word.
It isn't abnormal for oppressed groups to reappropriate verbiage that was used to demean them (jews, gays, women, etc do it as well), so I wouldn't be surprised if even slaves referred to themselves as "nigguhs".
I think it's more offensive when people use it as a classist/racist term than the people who use it as a term of endearment.