Possible Thesis Statements:
* The pursuit of dreams and ambition can lead to both triumph and tragedy, particularly when faced with societal limitations and prejudices. This theme is reflected in the struggles of both Moon Shadow and his father, who both strive for different versions of the American Dream.
* The power of hope and perseverance can overcome even the greatest obstacles. This is evident in Moon Shadow's determination to become a pilot, despite facing racism and social barriers.
* The importance of family and community in overcoming adversity. Moon Shadow relies heavily on the support of his father, friends, and the Chinese community in San Francisco to achieve his dreams.
* The conflict between tradition and modernization can be both beneficial and destructive. The novel explores the clash between the traditional values of Chinese culture and the rapid modernization of American society, as seen in the changing role of the Chinese in San Francisco.
* The importance of understanding and respecting different cultures. This is demonstrated through the interactions between Chinese and American characters, highlighting the need for empathy and cross-cultural communication.
Ultimately, the "thesis" of "Dragonwings" is open to interpretation based on the reader's own understanding and experience. However, the novel undoubtedly explores these complex themes in a nuanced and engaging way.