The Working Class Crisis in the West

There is a crisis for the working class in the west, and has been there for a while. You can't then turn around and say 'let's be anti immigrant' It will alienate sections of the actually existing working class. Ou wo can't build a socialist project in the west without black and brown workers at the heart of it. Chomanism is not going to help you. There's no smooth transition of this ont bo it is. How would you respond to claims thata china is a colonizing or imperial force in africa?