Authenticity.
If you use AI to write content, then its going to match a heuristic on words, phrases and format, that signature, isnt yours.
If you use a public AI model and voice to visual your character, thats another signature that isnt uniquely yours.
Specific details that come from search, facts, and predictions are also not "owned".
SEO and platform algorithms have always had the problem of both: copycats, but also duplicates (spam)
Its easy to claim ownership of an account or site, but identifying ownership across many duplicates is a problem.
its likely that out of the (say 100) channels, some percentage are individuall copycats. Theirs also likely multiple sets of channels that are owned by a single copycat, and perhaps more than 1-2. Finally theirs the potential that some percentage of these duplicates are copies that the primary artist who compiled this style and frame has created, for reach or even as a meme fitting the narriative of a copycat for audience commitment/story in the first place.
Its just like choosing silver over paper. The "Real" thing, has aspects of security that make it superior to infinately clonable copies that mimic those attribltes. Jon AG is paper, and can be printed to infinity, also specificly lacking any real security features.
The knowlege... attribution, has counterparty risk.. theirs just no accountability.
How will you know for example if all these JonAG channels sell their acccounts to "the bad guys" for millions of $$$ ????
Theirs no difference, except when your trust leads you directly into the sheering shed.
Candy from a stranger?