Maybe some people around here assume racism as characteristic of a single group, not as a human characteristic that we all share alike. Perhaps helps to quote what "racist" is described on a dictionary: "a belief that race is the primary determinant of human traits and capacities and that racial differences produce an inherent superiority of a particular race"
http://www.merriam-webster.com/dictionary/racism
For the record, the original poster mentioned that people of a given race were not paying bills, and that another given race was enforcing punitive legislation, for that reason riots spun at some point. I just disagreed with such point of view.
Reducing a complex problem such as Ferguson (and others) to colors is not correct. But heck, just downvote the one that tries to point that out. Even the original poster corrected his comment, so I'm happy to see some reflection happening.