A good, reasoned reply. However, your goal, which you mention several times, still seems undefined.
What precisely is it? If you cannot state it, how will you know when you have reached it?
The criteria I seem to gather from your comments is that those outside our theoretical fixed christian group determine our success when they begin commenting on it. Is that the goal, then? To have other view us and comment on us as good, loving people? To be "known for love, unity, and doing good" as you put it.
I'm not picking on you, if it seems I am. There may be something to your position, but you seem a little unclear yourself on what your position is. By questioning you closely, I am trying to at the same time understand your position and help you clarify it. I say this because I am often short with thiests and I do not in this case want to seem so.