Roman Jewish Historian Josephus.

Repeating stories he heard decades later. Hearsay by people who had an incentive to lie. Josephus also said things like this:

Now Adam, who was the first man, and made out of the earth, (for our discourse must now be about him,) after Abel was slain, and Cain fled away, on account of his murder, was solicitous for posterity, and had a vehement desire of children, he being two hundred and thirty years old; after which time he lived other seven hundred, and then died. He had indeed many other children, 1 but Seth in particular. As for the rest, it would be tedious to name them; I will therefore only endeavor to give an account of those that proceeded from Seth. Now this Seth, when he was brought up, and came to those years in which he could discern what was good, became a virtuous man; and as he was himself of an excellent character, so did he leave children behind him who imitated his virtues.

It's interesting to me that you consider him a valid source for one thing you can't prove but reject pretty much everything else the man said especially since you can't really disprove the Adam and Eve story.

Enough so that secular historians consider the person known as Jesus of Nazareth to be a historically real person

Interesting because your boy Josphius was in the area and wasn't aware Nazareth even existed. In any case truth doesn't depend on how many people assert something.

His ministry wasn’t even that uncommon at the time. There were many apocalyptic preachers around that time and other magicians/miracle workers, like Simon the Magician.

And?