Which part do you think is a strawman? Because one of the people that replied to me does appear to think that no war has ever been worth the results. It's a legitimate point of view, and that's why I asked if it was your point of view.
For the rest of this post I'm assuming it's not your point of view.
I'm very much not trying to strawman you, I'm trying to improve your argument. If any wars are considered "worth it, morally speaking", then single mistakes can't be enough to invalidate the war. We need to talk about how many mistakes happen and how they happen. We need to say how much is too much, and "zero mistakes" is not compatible with "some wars are worth it". The idea that we could have both in the real world is self-deception.