For your reading amusement: Unpacking Unitarian Universalism.
Warning: If you’re a UU, you may want to make sure you’ve taken your blood-pressure medication before you read this. It’s a page telling Christians — Southern Baptists in particular — how to bring Unitarian Universalists to Jesus.
They do admit, though, that “By any standard, Unitarian-Universalists are a hard people to win to Jesus. You might even say that they are impossible to win, but with God all things are indeed possible.”
Indeed. All things are possible. Including the rejection of any religion that believes it’s got a monopoly on truth.