You must acknowledge and experience this part of the universe. Karma is intricate, too vast. You would, with your limited human senses, consider it too unfair. But you have tools to really, truly love. Loving the children is very important. But love everyone as you would love your children.
Like gravity, karma is so basic we often don't even notice it.
Sakyong Mipham What is karma? Karma is an impersonal teaching tool of the universe. Whatever you put out, positive or negative, comes back to you in equal measure. Karma means literally “action.” It does not mean punishment, although we sometimes punish ourselves by what we do—when the results of our actions return to us. there is no desire to punish latent in the karmic mechanism. Its intention is to teach us valuable lessons. A hot stove doesn't want to punish you when you place your hand on it. But if you left your hand there you would destroy it. Similarly, over time the law of karma teaches us what to do and what not to do.
The person whose mind is always free from attachment, who has subdued the mind and senses, and who is free from desires, attains the supreme perfection of freedom from Karma through renunciation.
People accept only that person as their leader who is radiant with good knowledge and karma (deeds).