While my first hope would be for these DU'ers to repent of their ways and believe in the Gospel, if they aren't going to do that, I would prefer that they cluster together in "churches" like the Unitarians. These people are much more harmful when they remain in orthodox churches and corrupt them from the inside with their leftism. One only has to look at the history of the Catholic Church in the last 50 yrs to see the results. If a person really wishes to reject Christ in favor of Marx that is very sad and I hope he or she would be changed. But if not, please leave and form your own church/social club/whatever and let the rest of us to worship and serve the Lord in peace.
I agree!