If that was contextually directed primarily towards white employees, it's offensive and inherently racist.
I didn't (and now can't) see the context, but context matters. "White before black" is offensive/racist in many contexts, but not in the rules of chess.
Racists exists in every human group, and they're predominately non-white outside the West. e.g Groups like Boku Haram are anti-White racists in Africa.