No Such Thing as Evangelicalism?

Yet as soon as evangelicalism becomes a subject, it splinters and splits. Indeed, taken together, recent studies by more-or-less outsiders show there is no such thing as evangelicalism. The term represents a broad range of significantly different theologies, practices, and religious movements within Christianity, and there are often tensions among and within them. Which is no revelation at all to most more-or-less insiders, who call themselves evangelicals, however qualified, and who argue as much with others who do the same as with those of us who don't.

From The Chronicle of Higher Education, HT