You have just set me into a category--this is called "prejudice" and "stereotyping." In the United States white people are prejudiced against black people because of skin color, a different culture, and a different history. But your prejudice against me is because I have another passport.
在美國，白人對黑人有偏見，是因為皮膚的顏色、不同的文化以及歷史；而你，是基於一本小小的護照。