I think it stems from being a selfish species. All our life we pick sides - a sport team, university, town, etc.

We can't pick sides on violence. In wars, everybody loses.

I don't even know if we can consider things to win if that means that childrens have to die in screams.

I don't want such victories to be celebrated.

I want peace to be celebrated.

I don't think that its highly unusual to have a functioning society that doesn't actively partake where the children/woman/helpless suffer.

We have failed as a society if we can't stop it/actively pick sides in it.

The only side that one should pick is peace.