The church I attend left the PCUSA a few years ago..
At the time of the creation of the North American Lutheran Church it was touted as a “realignment of North American Lutheranism”
Something far bigger is going on, as you have indicated, there is realignment of North American Christianity as the old denominations fracture along orthodox/revisionist lines.
But since the orthodox remnants are receiving strong support and encouragement from the global south I believe the most accurate description is “a realignment of GLOBAL CHRISTIANITY”.