
According to Strange, they need to be sent back because they are “a danger to our universe.” This causes Peter to turn against Strange, clearly in an attempt to save their lives and come up with a new solution to fix the multiverse damage without sending all the villains to their supposedly inevitable deaths. He also learns from both Strange and Doctor Octopus (who appears to possibly be an ally?) that the villains were all supposed to perish in battle with their own Spider-Men from their home dimensions. In the new trailer, Doctor Strange says that the arrival of villains from across the multiverse is a result of the botched spell that was supposed to make the world forget that Peter is Spider-Man. Even the Guardians make it clear that they are trying to kill Ronan and Ego in their respective films, and they succeed on both counts. All of Iron Man’s solo films end with their villains being killed in combat with him (or Pepper, in the case of Killian in Iron Man 3), Malekith and Hela are both wiped out by actions Thor and his allies take, Alexander Pierce is shot by Nick Fury, Ultron is destroyed by Vision, Killmonger is stabbed by T’Challa, and Dreykov is blown up by Yelena Belova.


That may be an extreme example given that Thanos wiped out half of all life in the universe, but it falls into a pattern of the MCU heroes willfully enacting plans that kill their foes. For example, before the final battle with Thanos in Avengers: Endgame, Thor says, “Let’s kill him properly this time,” and Iron Man explicitly does so when he performs his own Snap with the Infinity Stones. However, the more pressing concern here is that with most previous MCU heroes, particularly the Avengers, being a hero more often than not includes killing the villains who are threatening the world. As discussed previously on IGN, the MCU has kind of a bad habit of killing off their antagonists at the end of their films.
