Denominationalism is a Humanism
At the very heart of nearly every denominational statement of doctrine is the notion that other such doctrinal view points are incorrect. Before jumping to the conclusion that the only way out of the denomination-filled mess that the church has found itself in is to resort to pluralism, it is worth examining the causes.
Often times as Guder points out in his book Missional Church, denominations are put in place for their organizational benefits, which can certainly be a positive outcome of denominations. Other times, they can create distinction between what one person calls true Christianity and some sort of inaccurate gospel, which again can have its benefits. Key to understanding what to make of the divisiveness that springs from denominations, however, is recognizing that both of these lines of thought are distinctly human-focused. Although trying have the most accurate beliefs possible is a worth goal, it seems that denominational lines are almost never drawn over salvific issues, and more often over some variety of adiaphoric discrepancy. As Guder points out, denominations are not justifiable from a biblical-theological viewpoint. Recognizing the limitations of human knowledge about the intimate workings of Christian faith is the first step required toward greater unity in the Church.