Tbh, Some people just aren't into families and perhaps you are expecting too much? It sounds like you have an 'ideal' family that you'd like to have, but all too often, real families are not like that. Lots of families are not really that close, and I think for many that's just the way it is.
Like you, when my DD was taken into hospital for a rushed but minor operation at only a year old, not one of my ILs phoned to see how she was. Mind you, when she was born, half my ILs didn't even acknowledge her birth - not even a text to dh to say well done. That's just the way they are. Some people are quite self centered and don't care beyond their own lives. However, I wouldn't get stressed about it - instead, focus on building your own surrogate family. We have.
Last year, my DD1 was asked (at school) to design a wheel of her family, layering them from the family she sees most often to those she see the least. She didn't put on her 'real' family (grandparents, aunts, uncles etc) but instead put on our friends who she refers to as 'auntie' and 'uncle'. She considers these people to be their aunt and uncle far more than her actual aunt and uncle and I know that they put far more effort / show more interest in her life. I trust that they would be there for her far more.My Dds are far more secure in their relationships with these people, blood is not always thicker than water.
I have the same from my childhood. I have my real aunt and uncle, and then my parents friends (who I still call aunt and uncle). To this day, if I were in need I would go to my surrogate aunt and uncle before I would ask my genuine aunt and uncle for help.
I used to be like you and make the effort on behalf of my DH, but had an epiphany moment years ago and wondered why I was trying to bridge the gap between DH and his family, given neither DH nor his family seemed that bothered about meeting up. I stopped trying, and decided to let Dh take responsibility for his family. Needless to say, he barely sees them - but that's his choice / problem. I focus on my family and the 'family' we have built with friends and we're all much happier for it
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