upset...

I was busy preparing for dinner in the kitchen for the whole family when my baby cried. The baby was not crying continuously. My husband was in the living room playing game on his handphone. His father came by and said twice very loudly :"wah, noone cares for you ah." I heard already very upset. I am busy and not shaking my legs doing nothing. What does he meant by noone cares for my baby? This is not the first time he said such thing. Usually I close my ears and ignore him but am afraid one day I cannot take it and will tell him off. I am also angry with my husband for not doing what he should, giving other people a chance to shoot us.And if my fil wants to say, shouldnt he shoot his son instead?