In this journal in 2007, the author and Alpesh Maisuria critiqued two central tenets of Critical Race Theory (CRT) from a Marxist perspective (Cole and Maisuria, 2007). These are its primacy of "race" over class, and its concept of "white supremacy". Part of the critique focused on the work of leading UK Critical Race Theorist, David Gillborn. A year later Gillborn (2008) responded briefly to their critique. There followed an interchange between the author and Gillborn (Cole, 2009a; Gillborn, 2009). The author welcomes Gillborn's willingness to enter the debate between Marxism and Critical Race Theory. In Gillborn, 2009, Gillborn raises a number of issues in reply to the author's paper (Cole, 2009a). In this paper, the author limits his response to what he considers to be the most important issues for the readers of this journal: the concept of "white supremacy", and Gillborn's caricature, misrepresentation and dismissal of Marx and Marxism. At the outset, the author would like to reiterate his concluding comments in Cole, 2009a (p. 118), namely that his purpose is not to question the ideological or political integrity of Critical Race Theorists, but to open up comradely discussion in the light of the entry of CRT into British academia. The author has great respect for Gillborn who has an impeccable history of fighting racism, and his comments should be seen in this light, and in the context of their common commitment to the ongoing struggle against racist thoughts and practices. The author hopes that readers of this journal will join in the debate, a debate which has major implications for radical theory and practice.