Probably the fullest and clearest articulation of Adolph Reed's anti-"anti-racism" that he has written thus far. https://nonsite.org/article/the-trouble-with-disparity
There's something to the claim that a racial-democratic (disparity) argument supplanted a social-democratic horizon on the left, but it downplays the fact that racial-democracy arguments did not win out in society at large-the main factor sustaining this structure of debate.