But there are practitioners, and no doubt professors, or white/whiteness studies. I don't know whether there's one in BCU but whiteness is an area of academic debate and study in western universities that has developed over the last 30-40 years.
Because there is a centuries-old track record of non-white people being treated as inferior, to the extent of their being enslaved and regarded as not properly human, the process of non-whites emerging from that enforced low status, and establishing themselves as equal, is a very distinctive part of social history. As such, it's worthy of study, and will often be focused on as an area of study by black academics and students who will understandably more keenly feel the injustice of such a shameful part of social history - their own ancestors may even have been slaves.
The professor in question, from the list of his publications, focuses on the history of blacks resisting racism and the legacy of that resistance. In the paper mentioned earlier, it looks like he's analysing the aspects of 'whiteness' that led to the history of whites assuming their superiority over non-whites, and discussing if that superiority has ever gone away. It cites what he says are the only two big-budget British films about transatlantic slavery and argues that these films do nothing to disprove that this feeling of superiority - what he's calling 'psychosis' - is still latent. Given that there are still white racists and white supremacists, I'd say he's correct.
None of this makes him racist.