Ethnic is more specific than cultural; it generally refers to a package deal that includes language, historical narratives, customs, and sometimes religion. You

Ethnic is more specific than cultural; it generally refers to a package deal that includes language, historical narratives, customs, and sometimes religion. You can speak of, for example, Cajun or Sicilian ethnicity, but you can only speak of global consumer culture. Which is I think what the above was referring to when they said it's cultural and not ethnic; it has to do with cultural factors that cross ethnic lines.