Proclaiming hatred of whites is indeed a meme. Most recently it became newsworthy when it was revealed that the New York Times hired a woman (Sarah Jeong) to their editorial board who had a history of tweets proclaiming her hatred of whites, especially white men.
Mollie’s tweet could’ve been made by any of thousands of white college students—that’s called self-othering, btw. Demonizing whites is now an ingredient in our enculturation—not just in the academy but also the popular culture. That’s the reality.