It seems that this topic is nothing more than a springboard for the same old race relations discussions and police brutality topics that have been going on forever.
It's not a new topic, just a new manifestation of a worn-out one. Yet people flock to it. People in fact seem to be drawn to topics they can apply these old lenses to more than truly new ones that they have no framework in place for dealing with. No wonder change is so slow... people keep operating from the same sets of opposing perspectives all the time, until those perspectives are so out of touch with reality that they're forced to create new ones.
Unfortunately, there will always be a justification for this perspective. If there is any observable difference between two people that divides them into different groups, you can bet someone will use that difference in a discriminatory fashion. Maybe not everyone, but a lot of people will. It happens with race, it happens with clothing, it happens with hair style, it happens with gender, it happens with age, it happens with religion, it happens with region/location, and it even happens with personality type sometimes.
As for this situation... well, I don't know. If the police report was correct, the police were justified. If what Gates said was correct, then he was justified. But who was right? I don't know.