Many of the men you mention are either not historians (who were not interested in writing about the life of a criminal in a backwater and rebellious corner of the Empire) or were not contemporaries of Jesus.
Yes, I said that it was a list of historians and writers, not just historians. And they wouldn't have to be contemporaries of Jesus to be able to report accurately about him, as you yourself claim below about "the biographies of Jesus".
In any event, if the events in the gospels are to be considered historically accurate, Jesus was not merely a criminal, he was a "supervillain". In other words, the authorities wouldn't think of him as just a thief or an arsonist, he would be more like Darkseid or Galactus. If nothing else, I would think they would want to document it just to keep records of what they were up against.
In addition, your comment can be said for many GREAT figures of the ancient world, such as Alexander the Great. We have not one word from a person who saw him alive, nor witnessed any of his battles...
Perhaps not, but even though there may be a lack of written documentation, there is a gargantuan amount of archaeological evidence that he existed, not least of which is all the cities named "Alexandria" that he established. There is no archaeological evidence to support the existence of Jesus.
Don't we have biographies of Jesus, dated less than a generation from His death?
What we have are Matthew, Mark, Luke, and John, all of which are anonymous uncorroborated documents written some time after Jesus' death by people who likely never met him. Mark is generally agreed to be the earliest of the four, and even that one was almost certainly written no earlier than the year 65. The others all came later, Luke and John possibly even in the Second Century.
In most circumstances, this would probably not be so problematic. If, for example, you found four different documents dating to the first century, talking about a man named, oh, I don't know... "Pianodwarf", let's say
and they said that he was born in Jerusalem, lived there making a living as a potter, married when he was 25, had three children, and died when he was 40, you would find the document reasonable. (Well, except that pianos hadn't been invented yet, but let's overlook that part.) You might not know for sure whether it was historically accurate or not, but you'd also have no real reason to doubt it. There were undoubtedly many men in First Century Jersualem who lived lives much like that.
The claims about Jesus, however, are rather more extraordinary. It isn't every day that someone walks on water, cures leprosy, restores blind people's vision, raises people from the dead, and comes back from the dead himself. Accordingly, a higher standard of evidence is required before we can say that the stories are, or even might be, historically accurate.
What we know of the life of Jesus of Nazareth pales in comparison to Zarathustra. For starters, specifically where and when Jesus was born...
Actually, we know very little about Jesus' life at all; there is even some room for uncertainty as to whether he existed at all. Keep in mind that the gospels are not documentation of Jesus' life. Rather, they are
claims about Jesus' life that need to be
documented. If the claims were accurate, we would expect to find overwhelming supporting documentation. Instead, there is almost none at all, and what little there is is of doubtful accuracy and authenticity at best.
And to you as well.