Jesus, whether mythical or not, is simply consummation of Judaism. The same is true for Buddha and Hinduism. But it all dates way back before Egypt. After all, Egyptian culture was, to a large extent, imported from Levant. Also St. Augustine is correct that as an embodiment of “one true religion of this world of phenomena” Christ became synonymous with it (again the same is true for Buddha, but also many other “sages”).
Other funny correlations become visible when you compare old Sumerian, Canaanite, and Semitic myths (but also animistic worldviews from other regions such as Australia or North America). It’s pretty easy to spot how e.g. Tanakh and Bible (but the same is true for e.g. Vedas) are at their core animistic (or “pagan”), only influenced and mixed with “undigested” non-duality (thus they constitute something I would call hierarchical animism which can have many forms ranging from polytheism to monotheism). This also nicely answers your question why the first name of God in Bible is plural Elohim. It also answers why there were attempts at revivals of the “original teachings” (Christ, Buddha, etc.), which, however, met the same fate and quickly deteriorated into hierarchical animism, too. Thus the whole question of Christ’s (or Buddha’s) historical authenticity is more or less moot. IMO.
