First of all it is apparent from grammatical oddities and spelling errors that "Muslim Scholar" is likely not an English/American speaker by birth. Secondly he doesn't grasp the idea of proof very well nor of either personal or professional accountability (the last the hallmark of any serious scholar). Worse, he meets the definition of "delusional" very well. He holds a strong, emotionally reinforced belief that has no objective support for its validity. The specific course of correction here is to ignore irrational behavior and support the rational. If you attack him for his falsifiable beliefs he's going to build up stronger defensive barriers to correction. Just my 2cp. 
