>>In places like the Netherlands and Scandinavia, marriage is in decline due to the pervasiveness of the socialist nanny-state which has eliminated the need for a stable two-parent family to provide for children.<<
And that is different from here in what way?
The welfare state in those places is bigger than in the US. As a result, marriage is in even worse shape. If our welfare/nanny-state keeps growing, marriage in this country will keep declining.