So you would need a reliable, contemporaneous first-person account from someone who actually met JC in the flesh before you would entertain the idea that he existed?
Would you hold this same standard for other historical characters from the ancient world?
This old strawman chestnut has been dealt with before (
from Evidence for the historical existence of Jesus Christ article at rationalwiki):
When discussing the evidence for Jesus' existence, a common claim made by apologists is that there is "more evidence for Jesus than 'X'".
[...]
While it is is impossible to cover all the ancient figures and events Jesus has been compared to there are a few popular ones that show just how shaky the position really is (It should be noted that this sometimes mixed with the more accurate than Homer argument).
Sun Tzu (Sun Wu) (544–496 BCE?): his very existence is debated in scholarly circles [198] despite reference in the Records of the Grand Historian and Spring and Autumn Annals which used earlier official records that haven't survived.
Confucius (Kong Qiu) (551–479 BCE) the Records of the Grand Historian used archives and imperial records as source material (which themselves have not survived). Its author Sima Qian noted the problems with incomplete, fragmentary, and contradictory sources stating in the 18th volume of the 180-volume work "I have set down only what is certain, and in doubtful cases left a blank." Moreover, Kong Qiu was the governor of a town in Lu and ultimately held the positions of Minister of Public Works and then Minister of Crime for the whole Lu state not exactly minor positions one could create a fictitious person to fill.
Leukippos (shadowy nearly legendary figure of early 5th century BCE): very existence doubted by Epicurus (341 – 270 BCE).[199]
Socrates (c469 – 399 BCE): written about by contemporaries Plato, Xenophon (430 – 354 BCE), and Aristophanes (c446 – 386 BCE).
Plato (428 – 347 BCE): written about by contemporaries Aristotle (384 – 322 BC), Xenophon, and Aristophanes.
Alexander the Great (July 20, 356 – June 11, 323 BCE)[200]: official historian Callisthenes of Olynthus, generals Ptolemy, Nearchus, and Aristobulus and helmsman Onesicritus where all contemporaries who wrote about Alexander. While their works were eventually lost, later works that used them as source material were not. Additionally there are known contemporary accounts that survive: Isocrates, Demosthenes, Aeschines, Hyperides, Dinarchus, Theocritus, Theophrastus, and Menander.[201] And on top off all that there are the contemporary inscriptions and coins.
Hannibal (247 – 182 BCE): Written about by Silenus, a paid Greek historian who Hannibal brought with him on his journeys to write an account of what took place, and Sosylus of Lacedaemon who wrote seven volumes on the war itself. Never mind the contemporary Carthaginian coins and engraved bronze tablets.
Julius Caesar (July 100 – 15 March 44 BCE): Not only do we have the writing of contemporaries Cato the Younger and Cicero but Julius Caesar' own writings as well (Commentarii de Bello Gallico aka The Gallic Wars and Commentarii de Bello Civili aka The Civil War). Then you have the contemporary coins, statues and monuments.
Apollonius of Tyana (c15 CE - c100 CE): Often refereed to as the "Pagan Christ", fragments of Apollonius' own writings are part of the Harvard University Press edition of The Life of Apollonius of Tyana (1912) ISBN-13: 978-0674990180 as documented in Carrier's Kook article.
Boadicea (d. 60 CE): Tacitus himself would have been a 5-year old boy when she poisoned herself c. 60 CE making him contemporary to her. Furthermore, his father-in-law Gnaeus Julius Agricola served under Gaius Suetonius Paulinus during the revolt. So Tacitus was not only an actual contemporary, but he had access to Gaius Suetonius Paulinus' records and an actual eyewitness.
Muhammad (570 – c. June 8, 632 CE): Contrary to the picture some apologists like to point there are non-Muslim references by people who would have been contemporary with Muhammad. The earliest is the personal notes of an unnamed monk c 636 CE mixed in with his copying of the gospels that talks of the "many villages were ruined with killing by [the Arabs of] Mụhammad and a great number of people were killed and captives"[202] and in 661 CE Sebeos writes about Mụhammad and it is believed to be an eyewitness to many of the events he recorded. As if that wasn't enough,, the Quran and other writings about Muhammad can be traced to identifiable people who actually were with him during his lifetime (as in the case of Alexander the Great).[203]
Now compare those to Jesus:
1) The only known possible contemporary is Paul (Romans, 1st Corinthians, 2nd Corinthians, Galatians, Philippians, 1st Thessalonians and Philemon) who not only writes some 20 years after the events but seems more intent on the Jesus in his own head than any Jesus who actually preached in Galilee. In fact, even though in his own account Paul meets "James, brother of the Lord" we get no details of Jesus' life, not even references to the famous sermons or miracles.
2) The Gospels are anonymous documents written sometime between 70 CE to 140 CE and there are no references to any of them until the early 2nd century.
"A viable theory of historicity for Jesus must therefore instead resemble a theory of historicity for Apollonius of Tyana or Musonin Rufus or Judas the Galilean (to list a few very famous men who escaped the expected record more or less the same degree Jesus did.)"[204]
197 Richard Carrier (May 10, 2014) "On the Historicity of Jesus: What Would You Look Up?"
198 Sawyer, Ralph D. (2005), The Essential Art of War, Basic Books, ISBN 0-465-07204-6
199 Diogenes Laërtius x. 7
200 E P Sanders as cited by Carrier, Richard (2014) On the Historicity of Jesus Sheffield Phoenix Press ISBN 978-1-909697-49-2 pg 21
201 Carrier, Richard (2014) On the Historicity of Jesus Sheffield Phoenix Press ISBN 978-1-909697-49-2 pg 22
202 W. Wright, Catalogue Of Syriac Manuscripts In The British Museum Acquired Since The Year 1838, 1870, Part I, Printed by order of the Trustees: London, No. XCIV, pp. 65-66. This book was republished in 2002 by Gorgias Press.
203 Nigosian, Solomon Alexander (2004). Islam: Its History, Teaching, and Practices. Indiana University Press. ISBN 0-253-21627-3. pg 6
204 Carrier, Richard (2014) On the Historicity of Jesus Sheffield Phoenix Press ISBN 978-1-909697-49-2 pg 291
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I should mention that in his peer reviewed scholarly published book Carrier spend doubt four pages under the heading
The Socrates Analogy disproving this silly comparison.
As I have said before the whole Pro-HJ position comes off as if in 2089 you found that people were claiming Adolf Hitler was assisted every step of the way by his younger brother Edward who also passed himself off as a double of his brother and that it was Edward and not Adolf who spent his final days in the bunker allowing his brother to escape.
There is more evidence for that total fantasy then for Jesus!