Please review your response again. And review my response to it. "Asiatic" is, of course, used as a racial term, much like "Asian" is used as a racial terms today.
No. You provided one source that was dismissed because it does not rise to the level of a valid scholarly citation, and a second source that did not show what you claimed. Again since you're the one making the affirmative assertion, sourcing it is incumbent upon you.
Urbandictionary.com constitutes a "primary source" for the contemporary use of the English language and is a particularly rich source for slang and racial slurs. A true scholar of language would not casually dismiss such a rich vein of examples of use.
You had claimed in your post #143 on that thread (and let's take the debate back to that thread, if you choose to continue it) that "The unifying point of the definition is its reference to the cloth headgarb connoted in the term itself. As that headgarb has, in recent decades, become increasingly associated with the mahometan religion, the term has taken on the characteristic of an anti-mahometan remark regardless of the mahometan's race."
However, despite being the one making an affirmative assertion, you have yet to cite any source -- primary or secondary, erudite or vulgar -- to support your claim.
Actually they are very different. "Asian" in its racial use today refers to a hereditary designation, entailing persons from the east and southeastern regions of the asian continent - sometimes called "Oriental" as well. In other uses it can refer to persons from the continent of Asia, much as "American" can refer to both somebody from the American continents or in its use of Native American, somebody from an American Indian racial grouping.
The antiquated term "Asiatic" could conceivably have similar uses, though its base definition simply means somebody from Asia. It can be determined from the OED definition you gave that this was the usage employed, as East Asians are not particularly known for wearing turbans though central and southwest Asians are.
Urbandictionary.com constitutes a "primary source" for the contemporary use of the English language and is a particularly rich source for slang and racial slurs.
Not any more than Wikipedia or any other user-created "reference" tool. But go ahead - try it on some term papers and see how many F's you get.