Certainly interesting, but some things stated in this article are discussed among European scholars for a long time now. It's quite typical, that along comes an American institute or association with some "new conclusions" and state-of-the-art-knowledge, that for a lot of the scholars elsewhere in the world aren't really that new.
And it also shows (characteristic for many anthropologists) an alarming lack of historical knowledge. The concepts of race and stereotype discussed in this article (race as a concept used to create social differentiation, sociocultural hierarchys, man-slave-relationships, etc.) already existed in Ancient Rome, Greece (Sparta, Athens, etc.), Carthage and other civilizations. They were not created in America, as this article again and again implies, and then reimported into Europe. Most European and Asian powers were just smart enough not to let this kind of slave-ownership or the slaveholder-society itself become a definitive quality of their nationstates.
And the article manages again and again to let its own declared concept of race become too blurred and diffuse. For example when suddenly homosexuals or the handicapped are included in the concept, just to be able to talk about Hitler and "the Nazis" again. (And I urge you, scientists and scholars of America, use the proper terms when talking about a subject in a scientific or scholarly way. Everytime an American scholar starts talking about "the Nazis", other scholars from Germany, Britain, Japan or elsewhere have to restrain a smirk, because "the Nazis" is a colloquial term indicating bias, prepossession and flippancy (or scientific/scholarly superficiality) and is hence unfitting for serious scholarly or scientific conversation.)
But all in all certainly worth a read.