As an outsider (though "first cousin" as an Anglican) to the RCC, I'd inquire whether the authors believe this is a unique USA development. My thinking was that in places where evangelicals and Pentecostals were siphoning RC away in droves, cooperation was grudging or limited to specific culture war issues. Think about Latin America, and to a lesser extent, Africa.

There are some soothing points for your Christian brethren from the authors. Once, and not so long ago, your church only applauded religious freedom when it was the beneficiary, i.e., in Protestant majority lands. The power of the church and the political class was unified in RC majority lands. Protestant Christians kept their heads down. It is good to see the documents of Vat. II dealing with religious freedom and ecumenical respect reaffirmed in this article.