I’ve heard that this is instinctual. We have evolved to find crying and upset children intolerable because it motivates us to do something about it.
Children are also exceptional and figuring out how to push our buttons because they instinctively find and repeat behaviors that get a reaction out of their caregivers when they desire attention.
Unfortunately the most motivating emotions are often negative ones.
Idk it hurts my skeleton just thinking about it.