The nuclear family isn't coming back. As long as women have basic freedom in society, they will always resist it and monogamy. Women no longer have to depend on men for an income, and can "fend for themselves" by earning an equal wage, something that wasn't always possible.
But here's an interesting fact:
In many species of animals, the men stay together in packs and only are with women to breed. The mother raises the children alone.
Which is basically the life of a single mother. When you really think about it, it makes more sense when you account for human nature. When a father raises a daughter, he feels like a cuck whenever she gets a boyfriend. He spend time, money, and love into her only so another man can fuck her. But he doesn't have the same feelings for a son, so it doesn't matter to him.
On the other hand, a mother never cares if either her daughter or her son have sex.
So it may be better for humanity to abandon the notion of fatherhood altogether, and get into the single mother norm.
The only problem I feel is that a lot of brothers are protective of their sisters and also have a psuedo-relationship with them. Maybe boys should join the male pack by the time they're 10 years old or so?
I want to know what you guys think