There is no factual proof that supports Acharya's presumptions because it's all based on belief and the basic premise that OT accounts can't be true because there are former patterns, such as in Egyptian beliefs, but as I've illustrated many times before, the belief neglects the possible of diabolical mimicry...

The Bible has most certainly not been proven to be a copy of other older stories because of the agenda of fallen celestial beings who brought down with them archetypal truths and introduced them in order to lead mankind astray into Pagan ways. It's no coincidence that the illuminati also follow the Pagan Christ's but reject the true Jesus Christ. That is why the illuminati are following the Pagan Anti-Christ agenda. In order to understand this, one has to understand Divine mimicry:

" 'I tell you the truth,' Jesus answered, 'before Abraham was born, I am!' " - John 8:58

"In the beginning was the Word, and the Word was with God, and the Word was God. He was with God in the beginning. Through him all things were made; without him nothing was made that has been made. In him was life, and that life was the light of men. The light shines in the darkness, but the darkness has not understood it." - John 1

John says all things were made through Jesus and that the Word came down into his creation. But his creation did not recognise him (in fact it rejected him!). God isn't one who guesses what will happen in the future because he's outside of time, much like someone in a helicopter above a carnival parade can see the beginning, middle and front of the parade, whereas to someone standing in the middle of it, the front of the parade is the past, the middle the present and the end is the future.

Spiritual traditions (to those who believe in a spiritual reality beneath things), develop when spiritually aware/sensitive/awake people grasp some aspect they see in the spirit and translate it into symbols, words and systems, etc. Some of these may be accurate, some may not but if Jesus was indeed the word of God, the logos incarnate, as Christians believe, then why should it be a surprise that echoes of him and his incarnation into flesh appear all over the place, before his very birth?

Only a limited temporal outlook would discount the possibility that, in the most important aspects, these similarities that exist in other dimensions, i.e. with Jesus, can be found in so-called "Christs" prior to Jesus incarnating on earth, and are reflections of Jesus and not vice versa, whenever they happened.