If you don't hear this in services, that isn't surprising. I had a similar argument with a Unitarian recently regarding communism. He never heard it in his church either, and refused to believe that the UUA church near me (a veritable nest of Stalinists) was anything but a rogue, wildcat element. They don't preach communist doctrine from the pulpit there, either. The stuff for public consumption has to be more innocuous in nature.