If you actually read the essay, Scott says that we should seek to find the underlying causes of unconscious racism, and treat those. Most racism without intent means that, presented with a better option, people would choose to discriminate less.

What he didn't mention in this essay is institutional racism, which in his terms must be racism by consequence, because institutions don't have beliefs or motives. At least not in this context. Institutional racism is something that needs addressing, but it's not the same racism by motive, nor should we expect the same solutions to work.