Seems to me KA is stereotyping whites. This "white" dude knows:
* Not all with the family name of Smith are related; nor Jones, Brown, Black, etc.;
* Not all with the family name of Nguyen are related; nor Pham;
* Not all with the family name of Garcia are related; nor Rodrigues;
* Not all with the family name of Kim are related; nor Park; nor Lee;
* Not all with the family name of Wong are related; nor Lee; nor Fong;
* Not all with the family name of Schmidt are related.
Just to pick out a few common family names of various ethnic origins.
Unlike KA, I know many "whites" know this. Unlike KA, I also know that everyone learns things a first time, and at different times.