As I explained to another correspondent, my experience is UK-based, and comes from my work as a union rep.

As I noted, the majority of cases orginally brought to me as racst abuse or prejudice turned out to be part of an overall pattern of bullying by the manager involved. Unfortunately I had to leave my files behind when I retired, but I do recall that the most common and insistent complainers of racism were people of Pakistani or Bangladeshi descent and mainly Muslims. They showed a (to me) disturbing tendency to want me to disregard the wider situation in the team/department and concentrate solely on their personal grievances, despite the legal duty of care that I and they had to their colleagues. People of Indian descent (mainly Hindu) came next, but were more open to my wider investigations. Sikhs were more likely to confront the bully directly.

As to Black people, both African and Afro-Caribbean/Black British, they were more likely to complain in tems of general, rather than specifically racist, bullying.

White people seldom complained except in really extreme cases. I put this down to a mixture of machismo, parental advice to 'suck the mop' rather than risk their job, or a conviction that the bosses always get away with it anyway!