Just because I try to persuade you of the truth of the Bible and you tell me sincere honest objections to give me an opportunity to answer wouldn't make us enemies. :-) I've been screamed at, menaced, and cussed out so many times for the sake of the Gospel that I promise that some calmly weighed words won't bother me.
believe that it would be in their best interest
I would take issue with this expression, because I believe it to be an example of begging the question. We are talking about what is good, right, and justifiable. To assume that we know what is in someone's best interest is to assume that we do know what is good and right.
As for Molyneux's piece, can you tell me whether he shows how to bridge the Is/Ought gap therein?