I'm no expert, in fact when it comes to biblical scholarship I'm probably more like a sophomore, however that is not what the term sophomoric implies. When the conversation degrades to the point this one has fallen to in the last few pages, calling it sophomoric is being charitable. There is no reason. Grady isn't addressing your sides arguments and your side is responding with name calling and personal attacks.
It's difficult to find actual evidence for the existence of many figures in the ancient world. Look at Socrates for example. Most scholars agree that there was such a person, yet the only writings we have of him are the Gonzo type journals of Plato where he is the vehicle for Platos own philosophy.
With Jesus it is even more of a challenge because he was from a very obscure area and the only evidence we have of his existence were written long after his death based on oral tradition. there is nothing that we have found that can be called a contemporary record of his existence, however the consensus among scholars is that there was a real person behind all of this. There are few scholars who believe that Jesus was made up completely, Frike and Gandy's Jesus Mysteries come to mind but they are outliers and their arguments, in my opinion, aren't compelling.