incorrect; it is clinical; and to suggest otherwise is to imbue an epithet with the authority of science: this is the logical fallacy of blinding with science; I don't know know about America, but in Britain, a phobia is an IRRATIONAL fear. The inclusion of the word "irrational" is key to the NPOV and accuracy of this article.
It is rational to be hostile to immigrant populations, this is well supported by evolutionary psychology evidence; to describe this hostility as phobia, one is implicitly making a moral judgement on a behaviour that is widely agreed in science to be instinctive; and thus such a subjective moral connotation is irrational and unjustified. Obviously, Wikipedia contributers rarely know what they're talking about; but at least make the effort instead of loading this article with mock-liberal tripe.