I actually agree, I've always had the perspective that extended family is extremely important and the nuclear family without grand parents, aunts, uncles, cousins, etc. is unstable.
A lot of the problems we see with families in culture at this time, all relate to single parent homes or unstable 2 parent homes where, say, the parents are too young or something. A lot of problems just go away when you have the extended family involved and everyone is watching out for one another.
I've seen IRL that people with the worst personal problems come mostly from homes where, either, their parents got divorced, or they were just straight up raised by a single mom. Raising a kid is hard work, and much harder alone.