Call me

but the use of the phrase "structural whiteness" makes me think this is one of those cranks who believes "whiteness" is some kind of vague societal force rather than a skin color, and that that force is conveniently responsible for everything bad that white people have done and none of the good things she benefits from, like that school she got her MD at and the computer she's using to post on Twitter (I won't say Twitter itself because Twitter is not a good thing and should absolutely be eliminated).
So this may be less of a call to genocide and more similar to a hardcore evangelical saying that society needs to cleanse itself of satanism, which is in everything from atheism and Islam to rock music to Spongebob Squarepants and Pokemon. She thinks all problems for non-white people will be solved by all white people voting Democrat and becoming wiggers.
She'd still shit ten ton bricks if anyone suggested to her that the key to getting rid of black poverty and crime is to eliminate blackness, so it's still racist as fuck.