He was't talking about the color of the skin or a passport. He was talking about the culture, does it integrate well, is it compatible, is it "enriching" or actually enriching. Is the person and the group this person belongs to, a negative or a positive for the country, the society, the original/native people.
This has nothing to do with the race or a color of one's skin. Like Idris Elba is British as is Rishi Sunak.