Amen
The author describes a racial urban war. The presumption is the vigilanties will be present. In the cities, the vigilantes are a minority of the nonminorities. They must ultimately retreat from lack of support by the mass that wants yo get along
But he also describes the urban dwellers, whatever their ilk, venturing out of the cities to take what they want, after they’ve taken everything in the city. And that is where they will meet the resistance or their Maker, which ever comes first.