It all just depends. If the family is toxic, if it is causing problems in your life then sometimes it is good to cut it off. But I think when we say family is important it’s more from a perspective of being the head of a family and being a levelheaded leader who fosters certain values. It’s less about a blind love because of shared genetics. Ultimately the family as a healthy unit with a strong captain is such a positive force, and therefore a society made up of many strong families needs to be the goal if we want a healthy society Edit: I think there is also the factor of the continuity of blood lineage, so that our heritage and spirit of our ancestors remains a part of our inheritance