I know what you are saying, but I don’t see how any “attachment wound” could be bigger than death of a child....
However, it doesn't always work out like that. It makes sense morally, maybe intellectually, but it can work out differently emotionally. And unfortunately, many people operate not on the basis of principle or intellect, but on the basis of how they feel. This is sentimentalism.
It is not too extreme to say that sentimentalism kills.