You are in essence claiming to know for certain what Alan Keyes knows. Yet there is no way you could possibly have enough knowledge or experience to know what Alan Keyes knows or does not know. You cannot possibly have searched out and examined every fact and facet of Alan Keyes's life and mind. You do not have first person access to his thoughts. You cannot be totally certain that you have not overlooked something in Alan Keyes' experience whereby he knows the creator's basis for authority.
Cordially,
Defend keyes opinions, if you can, or attack mine. -- But don't claim that my critique is based on some sort of mindreading.