The bit in Josephus was a complete forgery, likely inserted by Eusebius (well-documented as a chronic and unapologetic liar for the Church).

Neither Pliny nor Tacitus wrote anything about Jesus - they wrote about Christians, the existence of whom is not in question. Further, it's well documented that Tacitus was tampered with.

The notability is that Jesus was claimed to be known to all, with scribes following him about.

Look, these objections really are standard, long-standing and pretty well documented. Reading up in the area is absolutely fascinating. Wikipedia is a half-decent start.