I mean, you’re entirely correct, but there’s also racial politics as in “race relations”. Like “why are we regressing on race based civil liberty protections and seeing an upswing in racial prejudice”.

Racial groups don’t have homogeneous political opinions, but they are often the subject of political opinions.

All that to say: there are many different ways to express a disgustingly inappropriate blend of racial and political opinions in a workplace, and we shouldn’t assume they picked any particular inappropriate way.