Most antiquities scholars think that the New Testament gospels are "mythologized history." In other words, based on the evidence available they think that around the start of the first century a controversial Jewish rabbi named Yeshua ben Yosef gathered a following and his life and teachings provide...
BTW, there’s a theory that Judaism has been heavily influenced by Akhenaten’s attempt at introducing monotheism in Egypt. It really feels as its skeleton is not Semitic, though it of course includes lots of things reminiscent of Semitic religions too.