Hitler particle

Etymology
Originates from a quote by Russian revolutionary posted by  account @DailyTrotsky on July 31, 2022: "Not every exasperated petty bourgeois could have become Hitler, but a particle of Hitler is lodged in every exasperated petty bourgeois." Popularized on Twitter in 2022.

Noun

 * 1)  A notional substance suggested to be present in people who hold fascist, racist, or otherwise bigoted views.