Humans just adapt and normalize things too quickly, so long term seeing more violence will just desensitize people and make it more acceptable. Just look at the difference between protected kids in suburbs vs kids growing up in bad areas.

People have been saying this since Vietnam (and actually now that I think about a little more, this may actually have happened).

Has seeing the horrors of the Ukraine war made you want the west to stop it and force a surrender? More horrors don't make people want less war. If anything, it may be the opposite. People pretend to be anti-war right up until there's a war and then suddenly it turns out they're actually anti-losing-the-war.