how doesn't it? Ethnic is defind as:
adj.
1.
1. Of or relating to a sizable group of people sharing a common and distinctive racial, national, religious, linguistic, or cultural heritage.
2. Being a member of a particular ethnic group, especially belonging to a national group by heritage or culture but residing outside its national boundaries: ethnic Hungarians living in northern Serbia.
3. Of, relating to, or distinctive of members of such a group: ethnic restaurants; ethnic art.
2. Relating to a people not Christian or Jewish; heathen.
noun.
A member of a particular ethnic group, especially one who maintains the language or customs of the group.
-Taken from dictionary.com
Who says politics don't have anything to do with ethnic?...ie..ethinic minority, ethnic appeal...etc.