How to treat the ending of drowning to save people in The Son of the Weather?

A long time ago, when I was a typical middle school student, I was very moved by this love when I read the story "Fight for the World for You", but I was also entangled: Is it wrong to sacrifice one person to save the world and one person for the big one?

Both options are difficult. Everyone must have heard of the classic philosophical problem of train turnout. Whether to save 50 children by pulling the rails or not to save one child, no matter how much discussion there is, if it really happens in reality, if you ask me to do this multiple-choice question, I would rather be a beam than do it. Therefore, when we see the story of Ricardo M Lu and Yi Lee, we will be moved to tears. When Emiya Kiritsugu becomes a partner of justice, we will feel sorry for his situation, because we can't do anything they do.

But I don't think this is a problem. I don't think he is suitable for you, nor for you. Someone must be wrong in this situation, even if it is not a black-and-white problem. So I thought hard, thought hard, and wanted to break my head.

Finally, I figured it out. I found something that was sent to me before, which made me feel inexplicable and absurd. How ridiculous is a world that can be saved by sacrificing innocent people? Still shameless?

Born as a man, I have the pride of being a man. If one day I have to sacrifice innocent people to survive, I might as well find a concrete place to die.

Parallel world: How do you view the ending of "The Son of the Weather" killing a person in order not to drown a city?

Are you worth it?