No, it is not. Your own claim was as follows:
Emphasis mine.
From the Cecil column you linked to:
Nowhere in your so-called cite is there evidence, or even a claim, that ritual insulting has “a special and larger role in Black American culture than in, say, almost any other culture.” Your cite doesn’t even begin to say what you’ve claimed to be true.
If you have some evidence that this sort of thing is more important in African-American culture than any or most other cultures, let’s see you prove it, or even provide any evidence. It strikes me as being obviously false and risible, but I’m open to evidence, as opposed to just bald claims backed up by Straight Dope columns that doesn’t, you know, say what you claim they say.
I don’t even understand how anyone could make such a ridiculous claim unless they were familiar with all the other cultures there are, or at least a really large number of them. Just what do you, Krokodil, know about the nature and importance of ritual insult in the culture of the Basques, or Quebecois? What about south Portugal, the Ainu, Bavaria, working-class Northern Ireland (Catholic or Unionist?) or the Sukuma of Tanzania? You’ve got a shitload of ethnic groups to examine to even start to support your claim.
I looked at the first ten or twelve and none made the risible claim that ritual insulting is more important in Black culture “than in, say, almost any other culture.” If it’s merely your claim that it’s just the only culture that happens to use the specific word “signifying” to denote what young men pretty much the world over do, well, big fucking deal.
You made the claim, so you’re the one who has to back it up.

