Film perpetuated false stereotype of "white & blonde" California
The mother even says "to me it looks like the whole world turned blonde."
That's quite an extreme comment.
They're in Los Angeles, which in 1984 was very racially diverse with a large black and Latino population.
Not many black or Latinos to be seen in this movie. They're sprinkled quite lightly.
The high school was basically 98% white, with coloured people having no speaking parts.
I know the movie is trying to make Italian looking Daniel and the Japanese maintenance man look like "outsiders" but they certainly wouldn't be in LA.