I think there's a couple of things going on here.
The first is AI-generated content. This can start with nothing more than an idea. Some of it is uniquely-presented stuff that's actually kind of interesting: I got sucked into a nice Ken Burns-style narrated documentary about the rise and fall of Baldwin Piano a few weeks ago. It was a little wordy, but it worked. It took awhile before a very glaring error in diction made me rewind for a double-take, note that no human would ever make that mistake while narrating, and then burn the channel from my feed.
The second problem is very different: Cloning individual people and channels. When a person (or nearly as likely, a bot) elects to use a bot to clone someone else's style, persona, and everything else then that's... that's very unsettling.
---
The first problem? It's whatever. I don't like it, but there may come a time when I accept it. At this point it's mostly harmless and really guilty of nothing more than wasting some of my time now and then.
The second problem? It can be reprehensible.
And it's particularly bad with a channel like Ryan Hall. I don't have any idea of how he is as a person (never meet your heroes), but I like to presume that he's generally a swell guy. And moreover: He's important.
When the weather turns iffy, I put his stream on and it's mostly just background noise. I usually give it very little attention.
But when he mentions the name of the small city I live in then that means that shit is just about to get very real here -- very soon. That's astoundingly useful to me, and the safety of the people I care about.
I also find a lot of value in obvious parody. It's can be fun, and it can make people think. The music of Weird Al or There I Ruined It, the crazy stories in The Onion, the memes. That's all good. But this Ryan Hall business? It's bad.
So, there's definitely a line.
And I don't know where the line should be drawn. But using bots to deceive and thereby dilute the value of the content of Ryan Hall's channel is definitely on the wrong side of that line.