Azes's the Two Phases of Freedom

In mi. my questions, how did the labor relations that particular groups were subjected to become red as racial characteristics inherent to those groups? And why did that apply to chinese workers, but not to freeb ones? And what does cause, you know, your work, and azis's work, is really looking at the limits are to the universality of republican conceptions of american freedom)? So what does it say? What does it reveal about the nights and the moment they were living in that the line was drawn at the chines, at chinese workers in particular?