If anything it's anti-nationalist propaganda. First of all, the treatment of the Elevens by the Brittania is similar to the treatment of the Chinese by the Japanese during the Sino-Japanese war and WWII. The emperor spouting his nonsense about superior race? The elevens as inferior citizens? GUESS WHAT, IT'S WHAT THE CHINESE POLITICIANS AND MILITARY LEADERS DID DURING WWII WITH KOREANS AND CHINESE. Only if u are retard, you could possibly think that Code Geass is propagating nationalism.