What do I mean by this?
I mean that America is and always has been a Protestant nation and that Catholics, in assimilating to America, have assimilated to Protestantism, both politically and culturally.
They have moderated their allegiance to the pope (Vance didn't kiss the ring), looking to him for "spiritual" guidance, but not political dominion.
They have softened on some of their theological distinctives (not one of the Roman Catholic speakers suggested that Charlie Kirk is in purgatory; instead, he's seeing his Savior face to face; that's Protestantism).
They have essentially accepted their status as one of the major denominations within (American) Christendom, which is a Protestant conception of the church (much like C.S. Lewis gives the Catholics a room in the Mere Christianity house; they may have a room, but it's a Protestant house).
Yes, I still believe that they have substantial errors in their theology (as Charlie Kirk did--from transubstantiation to biblical authority to the Eucharist). And I will never tire of thanking God for the doctrine of justification by faith alone (Trust in Christ alone and you will be saved, whether Presbyterian, Baptist, or papist).
But they have adapted to our Protestant ways, and I, for one, am grateful.
In sum, America is a Protestant tree, and the Catholics have nested in our branches for so long that they've begun to grow some leaves.
Leftists are enraged by the spectacle yesterday. They are calling us Christian nationalists. They say that we want to usher in a new era of Christian nationalism. They claim that we are more radicalized than we’ve ever been. And they’re 100 percent correct on all counts.