That's because White and Nerdy isn't a standalone song (if it was, it would be rubbish). It only has value as referential humour and self deprecating parody. So by being literal, it's using juxtaposition to emphasise the humour: It's funny when the nerd is pointing at the old JS logo and star trek's klingon icon because one would typically expect there to be something related to black culture, as in the start of the music video.

If it wasn't a parody of an existing song, and the popular genre, it would be complete garbage. Nothing about the song would work.