Just institutionalized racism, that's why I have no job and live at home...yup. The only time I've ever encountered racism is from Natives here and there. Nothing too bad, stuff like "eeeh whitey got a smoke" and if you refuse "fuckin' racist whitey". I haven't been gang-beaten like some. Interstitially I've never had any troublesome experiences because of my Lebanese side.
When you look ambiguous or can pass as many things, you will experience the best of both worlds. Unwanted negative attention can include extra security searches on your person, intrusive questions, people calling you slurs and epithets due to your real or perceived ethnic group (and when they are mistaken it is a real hoot), or more often, the subtle, inappropriate comments and generalizations people make about your perceived group. Institutional racism is the easiest for me to discern but the most difficult to remedy from what I see.