Good point, lesliedellow. No matter how skeptical scholarly sources may be on whether Christ is truly God or really performed true miracles, the fact remains that just about all scholars admit that there definitely was a major historical figure named Jesus. Many NT scholars, including myself, do believe that the NT does represent major spin-doctoring on the life of Christ. Via the Gospels, we are not looking directly at the human-historical Jesus; rather we are looking at Christ though the lenses of later interpreters. Consider the Virgin Birth, always a hot bone of contention. It is not at all found in the Gospel of Mark, which is probably the oldest of the Gospels. I believe the Virgin Birth is a later idea introduced by later Christians, not first-hand witnesses, to present a more godly image of Christ. Consider "The Infancy Gospel of Thomas." It argues that Christ was a very bad boy and actually killed a playmate. Why was this not included in the canon? Probably because it represents a less-that-flattering image of Christ.
A problem many have is that they labor under the false impression that there are no references to Christ anywhere else than in the Gospels. Hence, there probably was no Jesus, period, end of it, because if there really was any real historical even remotely resembling Jesus, we certainly would find him mentioned elsewhere. This is false because there are other witnesses to Christ. Above, I just cited the "Infancy Gospel of Thomas." I know it is extra-canonical, but it appears just as serious and valid as any of the other Gospels. So here is at less one other key witness to Christ. Also, come 1945, the bombshell hit. A surprise finding were about 42 gnostic gospels. Unfortunately, many laity know little about Christian Gnosticism. In short, this was a major movement in early Christianity that stood in tension with the "orthodox," or early Christians with our Bible and also our basic doctrines of Christ. However, my point is that the "orthodox are not at the only witness to Christ. Problem is, the gnostics (meaning knowers) and the orthodox were like a cat and a dog. Without going into detail, Gnosticism argued that the OT God was real, but a very inferior God who did a lousy job of creating the material world, which is the source of all suffering and evil. Moses is described as a fool who fell for all these unnecessary rules from the OT God. Christ came to show that the path to freedom is to just about break every single law of the OT God. We all initially pre-existed in an immaterial kingdom of light. However, overcome by the wiles of the carnal world, we became reborn as human beings. Hell is reincarnation, another round in the miserable physical world. Jesus came to show us how to transcend the material world and inter into the Kingdom of Heaven, which is inside each of us. Christ never was crucified, but some fool in his place. There was no reason for Christi to go to the Cross anyway. pure propaganda from the orthodox. Also, Christ was definitely not Jewish. OK Bottom line: There are many more witnesses to Christ than the four gospels we have. Granted, the conflict between the gnostics and the orthodox probably involved considerable spin-doctoring of the life of Christ both sides. Still, the fact remains even two radically different camps did both agree that there was a real figure named Christ.
Also, yes, we theologians do use myth in a way different sense. Our concept of a myth is that all myths have a solid basis in reality, no matter how much spin-doctoring went on.
Note that King Arthur and also Robin Hood are taken by most serious historians as referring to persons who did in fact actually exist, despite the spin-doctoring. Sherlock Homes is very interesting here. He actually does have a firm basis in reality. How? It is well-documented that Doyle had considerable interaction with Scotland Yard detectives, especially a real super-sleuth nicknamed, I think, Tom or Nick of the Yard. Homes , then, was modeled after a real detective. Also, Doyle was an M.D., who studied under a pioneering professor of forensic medicine. So Holmes has definitely a second basis in reality, right down to his famous pipe, incidentally. Also, professor Moriarity was based on a real international super-criminal that Scotland Yard did chase after for over 20 years. So, even fictional characters have a basis in reality.