Christian nationalism on not merely being a patriotic Christian who wants a moral nation. It is the desire to bundle American identity and Christian identity into one thing such that you are not American if you are not (their brand of) Christian!
This article explains how that fails us all.
christianpost.com
'Christian nationalism' already failed America once
It sounds like a reasonable defense against cultural decay if the Left uses state power to push its worldview, why shouldn t Christians do the same But dig into history, and you find this road has