His PC morality overrides all else.
It would stigmatize the people and the country that the patient came from if he made any such identification,
so he can’t do that. The patient is most likely non-white, so that makes it even more imperative that he and his country not be stigmatized.
“PC morality” sounds like mutually exclusive terms, not unlike “jumbo shrimp”, “affordable government health care” and “the most transparent administration”