Hello Garymazeffa, thanks for replying.
You said:
"You don't. Why does Jesus's ministry in the Gospel of St Luke and the military campaign of Titus in Judea in the book by Josephus, The Jewish War parallel each other exactly? Please offer your counter arguments."
First: they don't parallel each other exactly.
Second: their similarities simply follow the geography of the land. If you're traveling through Israel, there are a few main highways that everyone uses.
Jesus and Titus used the same highways, because the land is incredibly hilly, and if you don't take the highways, your travel time increases exponentially.
Bill Schlegel's Bible Atlas digs into this in great detail.