[lapcat]

> The author just takes it as a non-controversial statement of fact that "white men" are inherently evil and that if they support a political candidate that means the candidate is also bad, and that she needs to distance herself from the whole thing.

No, there's nothing like that in the article. You imposed this strange interpretation on it. After all, Bernie himself is a white man, so why would someone who thinks white men are inherently evil support him, especially when some of the other candidates (e.g., Clinton) were women?

The "Bernie bros" meme was a cynical ploy to undermine the Sanders campaign by trying to show that only sexists would support him over his female opponents (Clinton or Warren).