I have to agree with Lazs, TwentyFo. You have lived a sheltered life, as far as "race" is concerned.
Living exclusively in the US is 9 times out of 10 not going to be enough for any average person to have an accurate perspective of the big picture of racism.
Look at that youtube clip I linked to. Do you completely understand John Lydon's perspective? He refuses the black side of the black/white divide, no matter how friendly the actor (I forgot his name, he played in Say it ain't so) suggests it, because it's as unfair as the white side of racism.
You're also wrong when you say someone can be expected to act a certain way because of his race. It isn't race, it's upbringing, tradition or conditioning, it's education and personality. Plenty of foreign ethnicity individuals who've grown up in white countries have grown up to be entirely different from their ascendent cultures, and this by their own will. First hand example I've seen multiple times are Turkish or Middle-Eastern in Germany, Mexican in Germany, Asian in France, Indian in the UK, and Latino or Black in the US.
Someone "acting" like their ethnicity is a matter of choice, not predetermination.