Nobody is perfect =/= constant extreme emphasis on turmoil and muh relatable villains. The argument is that fiction perceives reality as having a baseline of misery, this simply isn't true and is a self-destructive mindset. This means that peddling misery and tragedy equates to "realistic", and due to the literary elite's long bias against genre fiction, genre fiction now attempts to take on the traits of "realistic" fiction, aka modernist fiction, which attempts to show just how dirty and sad everything "really" is. This is why superheroes are brooding and violent, not even to the extent of the Xtreme 90s nonsense, but in the Nolan sense of just humorless grimness. It's intellectual poison. We don't allow ourselves idealism or what-ifs because it isn't "realistic". OP is arguing for the fantastic to be fantastic for its own sake. Superhero stories can and should explore concept and imagery as much as they do "relevant" and "important" topics, which we've been fooled into believing have more intrinsic worth than the imagination.

And generally people will agree that choosing to save the lives of countless people over one was the right thing to do. People will also agree that no one wants to be mutilated. Looking at situations in terms of what is lost is also a problem.