Warning: this article contains spoilers for Attack on Titan.
Eren's plan to save his friends seems to contain a glaring plot hole, yet that plot hole actually makes sense. Attack on Titan's protagonist Eren Jaeger transforms into the anime's largest villain in season 4 as he plans to wipe out all of humanity beyond his homeland, Paradis Island. Eren conceals his motives from his best friends and brother, Zeke Jaeger, as he plots to take the fate of the world into his own hands. Attack on Titan episode 87 consolidates that the motivation for Eren's genocide plan is purely to ensure his friends' safety, however, his plan puts his friends in mortal danger as they are attacked by hordes of titans.
This plan forces Mikasa, Armin, and co. to wonder which side Eren is really on. Once Eren gains the power of the Founding Titan, he can control the wall titans and march them across continents to wipe out humanity, yet the titans inside the walls still try to eat the people within the walls. This rightly leads Armin to question, "If Eren commands the Founder, can't he control every titan?" It is bizarre that in Eren's attempts to save his friends, he also endangers them.
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This plot hole makes sense, however, because Eren specifically left Mikasa with the rest of the scouts. Even though Mikasa and Eren have been bonded since birth, in Attack on Titan episode 73 Eren tells Mikasa that he has always hated her. Eren's plan to save his friends proves that this is not true but he is this harsh towards her to ensure that she does not prioritize his safety over the safety of everyone else. Eren is aware that even if his plan puts his friends in danger, Mikasa's capabilities
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