Calvin Roach, a native-born American of Acadian descent, was

Need a two hundred words or more explanation of the below question. If references are used I need them listed.

Calvin Roach, a native-born American of Acadian descent, was fired by Dresser Industrial. Roach claimed that he was fired because of his Acadian national origin ("Cajun" descent) and his association with Dresser employees of the same origin. Employer claims that, since there is not and never was such a country as Acadia, employee's claim of national origin discrimination is not covered under Title VII. Do you agree? Why?