Multigenerational homes, or living with a bunch of people, was the norm until less than a hundred years ago. It was only a brief period of time of immense economic and technological growth that we saw people living independently in large numbers. We’re just watching a regression back to the mean. And I don’t know how we avoid it with a growing population, and not everyone wanting or willing to live in a city.
Your link is Clinton saying she won’t say before the primary is over whether she would support Sanders. It’s not even her saying she wouldn’t do it, let alone all liberals saying it.
The amount of disinformation spread here is amazing.