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.
That's far from obvious to me. Implicitly equating success with "acting white" is just as toxic as stereotyping all white people as arrogant, ignorant and defensive. These attitudes are the opposite of genuine inclusiveness.