Up through the 1960s, members and institutions of the Protestant mainline dominated American public life. To be sure, this dominance was not without serious issues””most notably, the exclusion of “Catholics, Jews, blacks, and atheists from nearly every position of influence in American life.” The significant demographic changes brought about by post-war immigration did nothing but exacerbate this problem.
Through these developments, influential mainline thinkers such as Harvey Cox and Paul Tillich responded by abandoning Christian particularism. Gleason writes:
They focused on the church’s social obligations, which they emphasized at the expense of the exclusivity and particularity of traditional doctrinal claims. In one famous formulation, Tillich argued that Christianity was just one of many ways to touch “the ground of being.” Symbols, religious and otherwise, all inadequately represented their ineffable subjects, but they also pointed beyond themselves to this ground of being, which Tillich called God. If Tillich was right, then mainline Protestants had no reason to distrust people of other faiths. Perhaps their beliefs were not so different after all.
This liberal thought was disseminated to millions of congregants by mainline Protestant clergy. They taught the values of “individualism, tolerance, pluralism, and emancipation from tradition”””and, in so doing, played a pivotal role in creating the culture in which we now live.
By virtue of their very “success,” however, mainline churches became a “vanishing mediator.”
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