Hi Glenn
To represent the "single thing," about a belief system which you do not, yourself, believe, is a tremendous feat of objectivity! I do not think you have accomplished it. If you could discuss the strongest points of Christianity rather than weak points that you, who do not believe anyway, call strong points, you might make a good point. Instead, you are raising a "straw man" or dummy argument for the other side and easily striking it down.
You cannot speak for Christians if you are not one. It is not conversational and it violates the rules of a fair debate.
Warmly,
Mike