Just follow the illogic of the white supremacists. Imagine, if you can, a bunch of self-deigned educated persons, who are mostly of white heritage and white physical beings, but they can also be of other heritages, do not like something someone says. The someone that utters what is not liked can be of any heritage but especially Caucasian (white) or white adjacent (See footnote). Once the utterance is spoken it is automatically categorized by the “educated” as words spoken by a white supremacist. There does not have to be an actual provable direct or indirect association between the speaker’s ideas in the utterance and white supremacy. Just the fact that what was said was not “appreciated” leads to the declaration that the words are emanating from a white supremacist.
The meaning of anything spoken is determined by the speaker not the listener. For example. What is in this comment will not heard by many as it is meant.

Are the accusers or are the accused the white supremacists?

Footnote: White adjacent- Someone not white that another person wants to identify (imagine) is white.

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