What is the theme in Caramelo, or, Puro Cuento: A Novel by Sandra Cisneros?

Another theme is sense of place. Inocencio Reyes sat on an interesting border where he felt more Mexican than the Mexican-American's and even more American than they. He served in the U.S. Army, something that many of the people would never put themselves through because of the generation they were in. He spoke proper Spanish and knew about what it meant to be a real Mexican, not what people thought it was to be Mexican. Yet he was never taken seriously by those here nor there and was even accused of not having immigration papers by the border patrol.