First, it is literally impossible for Kilroy-Silk, an Anglo Saxon, to be a racist in this instance. Anglo Saxons and Arabs are the same race. They are both subsets of European Caucasoids.
Second, what was published was not what Kilroy-Silk wrote, or what was originally published. Editorial reviewers deleted the word nations from after the word Arab. What was published this time round was admittedly a cultural derision but what Kilroy-Silk actually wrote was an accurate observation.