The question is closed and it is not so clear. If you can answer yes or no. I think that here you should ask if social networks have isolated family members who live together and if that traditional face-to-face family dynamic has been affected. Now, another question may be whether social networks have isolated relatives who live far away or who do not live face to face regularly. In this case we could affirm that it has been a miraculous link to be in contact with physically distant relatives.
No. I think that every generation has had influences that drove parents and children apart, particularly when the child reaches the early teenage years.
Once it was said "if you let then have TVs in their bedrooms, you have lost them." Today the same might be said for having smart phones with constant Internet access.