Interesting. None of that is evidence that God exists. Without a doubt, someone going by the name Jesus (or something like it lost in translation) existed. And a religion was founded based on him. Lots of things happened. People wrote down a lot of things. But those people all had a bias. The vast majority were trying to build a religion. So without a doubt, they embellished and picked the "witness" accounts that supported what they wanted to say.

As for the 3 famous figures mentioned at the start. The same is true. Historians often say that we don't know the real truth, just what was written.

As for the new testament. It was created by commitee. They hand picked stories and such that created the picture they wanted to present. And plenty of religious historians have pointed out that Christianity borrowed concepts and stories that worked well from previous religions.

So all that proves is that a human being going by the name Jesus existed and had a very influential life. It proves nothing of God.