“What other blacks has Vox Day referred to as half-savages? I only know of the one, N.K. Jemisin.”
Is that not enough for you? What is your threshold?
Vox didn’t call her a “demi-sauvage.” What you are doing is called “special pleading”. You have already indicated that the term “half-savage” is a gross insult, but you then try to mitigate it by saying he only used it once, “…and besides, there is a French term that maybe sorta sounds like what he said that is not intended as a racial slur?”