Leucius Charinus wrote:
With the splattering of a great amount of academic hubris all over the walls.
I'm not sure what you mean by 'academic hubris'. Carrier has a number of academic publications; many -probably almost all- are peer-reviewed. It's hii social & social-media hubris that is 'all over the walls' (the start of most of his blog-posts often contain raging ad hominems against others).
Leucius Charinus wrote:
... In terms of his "background evidence" Carrier also has a basket that is delimited somewhere in the mid 2nd century.
or mostly earlier
I don't know if Carrier has acknowledged the propositions of Joseph B Tyson, Markus Vinzent, or Matthias Klinghardt, that some or all of the Gospels were written after a proposed Marcionite 'canon'.
Leucius Charinus wrote:
Perhaps the greatest item of evidence Carrier (like Doherty) uses is the non canonical text known as "The Ascension of Isaiah".
However IMO their problem is to provide evidence it was known before the "background evidence cut-off date of the mid 2nd century". My position is that this text was authored, along with the entire corpus of the non canonical literature, in the 4th century as a literary reaction to the sudden and unexpected appearance of the [canonical] Bible Codex as the most powerful and authoritative political instrument of the new and revolutionary "Christian State".
I strongly disagree with your proposition that these texts appeared as a reaction to a 4th century Bible/Codex/NT Canon.
Some or even many of these apocryphyl / gnostic texts were likely to have been around at the same time as, or probably even before, the Gospel texts. Even texts like the Gospel of John, Revelation, etc may be re-worked pre-Synoptic texts.
and, There were likely several versions of 'key' popular texts: some early, some late. We know more than a few ended up in different versions in different dialects or languages in different locations.