Imagine you met someone who believed in a person who was someones only son, there father was a carpenter, they had holes in there hands where nails had been and they could do magical things. Would you think this person was stupid? Well suppose I told you the person believed in jebus. Youd think they were intelligent, right? What if i told you that the person actually believe pinnocio was a real person. Then youd say they were stupid, right? EVen tho the only difference is in the name.
So the only thing that according to xians determins if something is stupid or not is the name of the person who they worship. How do you get from 'but the thing i believe in isnt called pinocio' to 'therefore my sky daddy exists'?