From a moral point of view, it is unreasonable and illegal to deprive anyone of his right to exist without his consent. And it will be used by some terrible people in society, so I think it is not good to sacrifice one person to save five people.

Specific analysis of specific problems. If the victim is a super villain, the sooner he dies, the better. Because we have to protect most people. And if I am an ordinary person, I want to sacrifice one person to save five people, which is helpful in terms of overall social happiness. ? What I fear most is that such "rationality" will be abused by criminals ... which will make society more chaotic and scary.