I agree that living arrangements and familial bond issues should not be the realm of government, but culture and social life. Government absolutely should treat each person as an individual and as fairly as possible. In truth I suppose I believe that government should make no law respecting cultural or religious practices. All laws should be universal and as simple as possible.
And I emphatically disagree with not changing the framework to suit those goals regardless of the upheaval it will cause. Let's get things headed in a right direction, letting fairly universal wisdom guide us, sooner, rather than later. The problems mankind is facing are precipitous and we need to act like we care and some urgency is involved.