Any of the writings you mentioned if I take them to be true doesn't say he was God and wasn't proof of the Trinity. Personally using the bible to prove he was who you say he was is not good enough but say I did use the bible as proof.
The bible doesn't say anything about the Trinity and doesn't claim he was God. So IMO even the Bible itself doesn't say he was who you say he was.
The historical documents could be alluding to several people named Jesus or a group of Christs as well, there was a Messiah movement going on then .
There is a problem with 'Jesus is a g-d, however He isn't the other deity /His father, theology.
There is also a problem, //many problems/, with 'Jesus was a man, merely a prophet, so forth.
Some examples of the problems you have with both of these ideas/perspectives.
-The O.T, makes it clear that no other G-d besides the G-d /of the Torah//and Tanach, and Christian Bible, which according to Christians, is called The Old Testament, can be adhered to; no other G-d before G-d. Now, a deific Jesus, but not the Father, is dividing the 'Godhead'. This is polytheism, of course. In another tradition, this wouldn't matter, //as in the case of many polytheistic religions/, however, in the Judaic religious paradigm, monotheism is paramount. You simply can't have multiple deities you adhere to, and at the same time, follow the Hebraic or Judaic religious parameters of belief.
-The 'Jesus is merely man', problems. Some of these are obvious. Normal Rabbis and fishermen, do not walk on water. They do not ascend, and so forth. This is clearly not a ''normal'', or average fisherman Rabbi. The idea, that, these are fictional references, is great, however, for a ''Christian'', to claim that //ie the Bible is essentially fiction/, is ridiculous. These Christians who propose this, also want to tell people, that Jesus had a ''message''. Of course, they can separate the fiction from the fact in the Bible, and tell everyone what the 'true message'', is ,that they are gleaning from this fictional book. This is asinine, and should be discounted immediately. The ''fictional book but some of it is non-fiction', idea, is of course proposed by many non-Christians. This is fine, however, also employs the idea that they can tell what is fiction, and what isn't, in the Scripture. This is also ridiculous.