For those people of color who wish to ferret out all those white "racists", here are a few operating principles I would suggest implementing.
1 -- make everything about race with absolutely no exceptions.
2 -- assume that all people of various races should exhibit specific qualities.
3 -- take no responsibility at all for your actions and behavior while attributing any of your failings to a racist system.
4 -- Adopt complete double standards, with one standard for the brothers and another standard for ******.
5 -- walk around with an enormous chip on your shoulder, acting incredibly rudely towards all white people you meet because they be the man that's holding you down, yo.
6 -- when encountering the aforementioned white man, gauge their reaction to your rudeness and assign anything short of complete, sniveling deference and apologies for all their "privilege" as a racist act.
Just follow these simple steps, folks, and you are sure to find lots and LOTS of white racists.
happy hunting!