The fact that a person in a lower economic class has a livable wage will solve many problems. Home ownership, affording a family and health care will east most economic friction. As far as social polarizarion, I think that's an entirely different topic,two people of high income can be socially and politically polarized for non-economical reasons.

I would suggest that a stable housing situation and outlook (even if not owned) might be sufficient on the housing side. Part of the renting problem in the US isn't the ownership arrangement, but rather the precariousness.