"Humanism in Context" for you.
That sense of the cultural radicalism that one feels in Unitarian Universalist congregations does not flow from the few radicals of the 19th century Unitarian movement, nor does it flow from our participation in the Civil Rights Movement of the 1960's. No, our sense of cultural radicalism is the result of many of our churches being formed in resistance to the overbearing and aggressive Christian nationalism of the Cold War Era.
I came to this insight by mashing up Kevin Kruse's "One Nation Under God" with Holley Ulbrich's The Fellowship Movement". Kruse describes the setting: the national elite (business, political and religious leaders) aggressively promoting a conformist form of Christianity as an essential element of Americanism and patriotism. Ulbrich describes what was happening in Unitarianism at the same time: the formation of mostly humanist fellowships across the country. My essay just connects the dots.
I am trying to imagine what that period felt like to those newly self-identified Unitarians. The atheist and the non-believer were being identified as an internal enemy of America, the people whose religious opinions were unacceptable. And so, joining a Unitarian fellowship was both an act of defiance and an act of camouflage. Atheism disguised as a church. (Someone could write a whole history of our modern UU movement, its liturgies and pieties, as the working out of that weird proposition in practice.) Non-believers who got up and went somewhere on Sunday morning.
What I am suggesting is that this process of being formed as a center of resistance to Christian Nationalism gave the UU's as sense of themselves as "critical insiders/outsiders" to American culture. On the one hand, we were the "excluded other," perhaps even a dangerous element. And on the other hand, we were the "elite in exile." I think that much of current thinking about ourselves focuses too much on our self-image as the exiled elite.
Well, I could go on and on about the possible implications of this, but this is my starting point. UU's sense of themselves as outsiders and cultural radicals come from the circumstances of our creation as a modern religious movement, and more importantly, it comes from our own historical experience of being identified as outside the norm, the other and the scapegoat.