I don't even know what the Essene accounts are. In my view, they fall into the same category as Christ for the Dharmic faiths as what was put into the OP. Irrelevant. History too. It's not useful to read a map of Santiago, Chile, to help navigate the streets of Moscow. It's not pragmatic to argue history. I see no value in it. You do, obviously.I've 'proven' no such thing, except that which exists in your own mind. I had no preconceived leanings toward the Essene account. In fact, I was raised a Christian, so by your standards, I should reject the Essene account as 'false teachings', shouldn't I?
The primary argument I am making is of the Essene accounts that 'The Teacher of Righteousness' are, in fact, who Christians refer to as 'Jesus Christ'. Your reference to the 'Unknown Years' is just additional support for my argument. That reference states that modern Christian 'scholarship' rejects the idea of Jesus's travels to the East, but has absolutely nothing to offer in place of it. After 'Jesus' returns to 'Nazareth' (for which there is zero evidence of its 1st century existence) the only words from the Christan camp of his whereabouts for some 18 years, is that he quietly lived in Nazareth without a peep, in a complete historical vacuum. Poppycock!:
And he went down with them, and came to Nazareth, and was subject to them: but his mother kept all these sayings in her heart.
And Jesus increased in wisdom and stature, and in favour with God and man.
Luke 2:51-52
And after that last so-called 'account', nothing..zilch...nada. And if that silence were only for a year, it would still be total garbage. But 18 years? Not a chance. We just need to use our heads a bit more to see that much of these writings are concoctions from whole cloth. This, in light of the many accounts of his travels in the East, which, in fact, do integrate one with the other. Even the different names given to this traveler match one another in meaning in the languages of their respective countries.
One more piece of information contributing to the idea of Yeshua's Eastern travels, is the Essene account of he and his family living and working at the Nazorean Essene family monastery atop Mt. Carmel, a mystical sect, which had connections to the Essene Theraputae of Greece and Egypt, a sect of healers, which came into being as a result of King Asoka, the Buddhist king of India, who sent his Theravada Buddhist monks westward to establish monasteries there. And who were these Theravada monks but healers. And where do you suppose 'Jesus' learned his healing powers from? Ultimately, these healers had been the Aryans who came down from the north into India some 4000 years ago. The Buddha practiced yoga, and so did the Essenes.
Want more?
The essence of the dharmic experience is to act in accordance with dharma, in the time of now, in order to better one's character, and by extension, mankind, and our collective path to moksha.
But if you feel the need, go for it. As I said before, i have no objection. People read, and act, as they feel best suits them. Best wishes reaching the goals dharmic faiths put forth.