In fact, Black criminals terrorize Whites daily, while Whites attack Blacks once in a blue moon. But the MAG (Media, Academia, Government) routinely claim the reverse. Routinely, and with enough emphasis that, as I say, a lot of Whites believe the nonsense, and practically all Blacks do. That increases the inchoate guilt-feelings of White liberals and the misplaced resentment of Blacks. That leads to more victimization of naive Whites, and more encouragement of young Black males to adopt the gangsta creed.
Fred Reed, who has been around the block a few times, and has few illusions about such things, describes the situation clearly, pungently, and with justified pessimism here:
We Are Screwed.