Kathleen Parker in Townhall lauds the role evangelicals historically played in progressive movements. But rarely if ever do we find mention in such accounts of the role liberal religious folks played in these movements.
When religious folks are given accolades for ending slavery, it's not noted that it was Quakers, Unitarians, and Congregationalists who were the churches organizing against slavery. Because such churches don't fit the overall narrative of religion in this country.
There's a political point to be made. Don't worry that the religious right is working against equality for gay and lesbians, science in the classroom, etc. Because in the 1800s they did good things (ignoring what kind of religious folks were in these reform movements)
It'd be helpful to see what role evangelicals are playing today. While the religious right justify torture, discrimination, etc. there is a move by some evangelicals to distance themselves from the religious right. So maybe there is a positive contribution to be made after all.
But if this happens, it ought not be forgotten the role religious liberals have played in social movements from civil rights to the anti war movement. If this country is going to change for the better, it will be these religious liberals, and evangelicals, and "seculars" who together will make it happen.