I was nerd sniped by this post for like an hour, and “false dichotomy” was the closest I could find, lol. You could say that the argument has an unstated co-premise (“the harm is necessary”), to which you are raising an “inference objection”.
I appreciate your thoughts! And “nerd sniped” is a great term 😂 I agree, I think there may not be a specific name for this fallacy (though it could be described as somewhat of a false requirement or false necessity fallacy), nor is it widely recognised in logic literature (as is often the case; some might call it a “made-up fallacy” but indeed a verifiable one), but it probably falls under the more general fallacies of “false dilemma/false dichotomy”, as well as “fallacy of composition”:
“Fallacy of composition occurs when someone assumes that what’s true for part of something must also be true for the whole or that if one thing is a necessary component of another thing, both must be necessary, even if it’s not the case. In essence, it assumes that the properties of the parts apply to the whole.”
nerd sniped
TIL a new term. 🙂
