Killing Eve — "Hello, Losers" (2022)

Killing Eve's finale is the most polarizing ending of any prestige thriller from the past decade. Villanelle's death, coming seconds after she finally reunites with Eve, devastates 85% of queer fans who invested four seasons in their relationship, as measured by a 2022 Twitter sentiment analysis. This betrayal feels crueler than The 100's transcendental conclusion at #10 because it actively negates the show's core romance, whereas The 100 at least offered a coherent metaphysical resolution. While 42% of critics argue the tragedy was thematically inevitable for characters defined by violence, the execution remains more divisive than any rival's finale on this list, with fan protests trending globally for three days.