[kube-system]

That, objectively, is enough context to determine the usage given the usage notes for that word in both Websters and OSX built-in dictionaries.

[fastball]

I'm not sure I follow? Are you saying the context here is that she is white and that is therefore enough for it to automatically be derogatory racist usage? That sounds... racist.

[kube-system]

That's a question that is sociological in nature, and far beyond the scope of the well-defined linguistic meaning of the word, which was what I was commenting on.