By all means, let nations be Christian. Christ is not only Prophet, and Priest, but King. And the government of every nation owes explicit allegiance and submission to Him.
But as transgression of the first table of the law is rampant in their homes and congregations, men who are waking up about the second table are in danger of letting zeal run without knowledge.
It is a trap to think that one can make a nation Christian, when the home and the church have yet to recover the right worship of God as the rhythm of our days and weeks, and the heartbeat of lives lived in communion with Him, and therefore diligently offered as sacrifice unto Him.