Though I disagree with the concept of the "real family" you espouse because it rings of religious overtones (which I reject out of principle), the rest seems pretty spot on.

I think a lot of it has to do with two key factors.

1. The advent of "social media" which is media, yes, but all but eliminates what I would consider anything "social" inasmuch as saying that socialization is face to face...back in the day this is how we did it. We went out and talked to people. Then the phone came to be and we could talk to more people from all over. Now with social media, we can navigate the world and reach a wide audience all at once...but there's no real socialization taking place. These are people sitting in their wife-beaters and boxers (or panties and week old sports bra) typing away while never really leaving the house except to hit the gym so they can take a selfie.

2. We created an on-demand society where we want it all, and we want it now. When we get what we want, and something else comes along that we don't have, now we want that. This bleeds into relationships too, since now we get bored with what we have after the honeymoon phase passes, and then we want the next one. And the next, and it repeats itself. The on-demand mentality has all but removed any rooting for people, especially in relationships. "Long haul" to today's generation means a few days to maybe a few weeks. Then it's ghosting and off they go to the next person.

Society made this possible. They created their own monster.

Honorable mention: Feminism. Wave 3 feminists have made it all but impossible for any man to even want to risk approaching a female for the possibility that a rape charge will be forthcoming for having the balls to so much as speak to them without invitation.