Earlier quoted context omitted.
What's so unsettling about that? Sure, I understand they did this to cause a bit of a stir, but it's just people carrying around dolls in a dystopian setting. And even if there were actual babies in there, the most unsettling part is the danger of the person carrying the baby slipping in the mud and falling on top of the baby.
I don't think I can explain to you why this is unsettling in the same way I can't explain why abusing animals is bad, stealing is bad, or anything else is "bad". If we don't already have a shared system of morals which says "abuse of children is bad", then it seems unlikely I'm going to convince you that depictions of child abuse are bad. To me, this is "bad" because I subscribe to a belief system that thinks abusing…
Can one abuse a urinal? (Apologies to marcel duchamp!)