Life is precious regardless. The child looks happy despite his infirmities.
I understand it is human to try to feel other's pain, and sometime we feel like it's better for them to just not have to suffer or "pull the plug." But really when people go through these difficult situation, they also get strengh to persevere through those trying circumstances (whether you believe in God or not).
Think about how much joy you can bring to that child's mother by even slightly empathizing with her. It's never too late.