Justice On Trial was the site. I went back through it. Yes that article is about only race. It doesn't factor in other considerations.
But if it does factor them out, then you would need to come to terms with your being in denial about the conclusions of the study.
A lot of the disagreement seems to come from suggesting that economic class and race are dependent variables. They aren't. Class is one factor where a defendant is unfairly judged. Race is another. They do not always operate in tandem, and one does not necessarily relate to the other in the courtroom. A poor white person has poorness being held against them. A rich black person has blackness held against them. A poor black person has both poorness and blackness held against them.
This doesn't seem a complicated concept to grasp. It isn't one or the other. It's both. And both are abhorrent.
Liberté. Égalité. Fraternité.