Bill, Evangelical Christianity is demographically invisible in Europe. I think you mean John Palovitz's work indicts (1) European Protestantism (i.e., 12% of Western Europe is Protestant [all denominations]-- the state [Lutheran] churches in the Nordic countries, Lutheranism in parts of Germany, Calvinism in parts of the Netherlands, Scotland, and Switzerland, and the established Anglican church in the UK); (2) European Catholicism (46% of Western Europe is Catholic); (3) US Catholicism; and (4) US Evangelical Protestant Christianity. Four religious blocks. Fair enough. 

We'll see what happens over the years as Europeans and Americans alike plunge into the digital/ technological tasks and demographic challenges of daily survival. Will they survive or not? Will the churches survive?  Or will they just sink into decadence or irrelevance? We'll see. Maybe the tasks and challenges will effect reconciliations between and among the different churches. We'll see.