It's the agenda of the Left for all people, not any particular race. There is social and historical context surrounding blacks in America that make them easier targets, so they have started with them. But really the same has largely been done to the low income working class of whites in Britain. In the post-WWII decades Britain began massive housing projects not unlike the ones we associate with black ghettos in this country. And lots of the same social ills: absent fathers, substance abuse, shiftlessness, poor education, no ambition.
Liberalism treats human populations as a grand science experiment, and it has had a thoroughly corrosive effect on their very humanity. Entire generations of rotted souls. You can see other examples of it in Asia. Have you seen those videos from China where a small child is struck by a car and bleeding on the side of the road, and people just have this detached indifference to her.