Well, my relationship with my family is good enough, but i do think i understand what you mean. In my view, the familial institution itself makes little sense: it abides to the bizarre cultural labels that have in common only the compartmentalization of love, like religion. The creation of artificial groups is rampant in the current modern society, where you can only love those who are in the group your culture tell you you're a part of, and the absence of love for those whore are outside of it.
Love isn't innately labelled anymore: it is your culture which indoctrinates you into believing that there are such metaphysical things as "romantic/familial love" as distinct from love. What makes a relative different from a stranger? Why should you treat someone you're in a romatic relationship withdifferently from someone you're friends with? Because that is pretty much political at this point; the cultural context in which families, marriages, nations, etc. exists is what defines this civilization-driven tribalism.
Our ancestors, the hunters-gatherers, didn't live in such a restricted context, they were free to make their own associations. Being expected to pathologically attach ourselves to people that happens to be more genetically similar to us agaisn't our wills isn't all that natural; we should be able to see the world beyond any arbritrary cultural context. The sedentarism of the notion of "households" also is problematic. Seeing "family" as normal is just another component of human domestication.