I'm a little confused by the autism comment. From what I have seen, the typical trait autistic people present is an intense interest in very specific things. To a point that the thought of doing anything else or new comes off as incredibly unconfutable for them. What you are describing sounds more like difficulty maintaining attention, which would be more in line with either ADHD or poorly developed management skills.
What that has to do with watching a streamer however.. I don't see what you mean. Everyone has their preferences and acquired tastes. Though some are certainly more... brain rot than others.
I've known about him for a while but never felt a desire to look too into it. From how it appears, he's basically if Vinesauce did his V-Dub bit all the time. Which just sounds fucking exhausting and would be boring real fast.
I'd argue it's a pretty tired genre at this point and they just failed to read the room and realize not only has the pie been eaten, but others already beat them to the crumbs.... but those were some ROUGH character designs.
My main issue with this situation is that I have not seen a single actual photo or video of a Hiation animal abduction. Just AI shit posts. Which means I can not in good consciousness simply take it at face value that it is happening. I also certainly hope it isn't. If anybody could course correct me with actual proof, I am more than willing to shift my opinion, but right now it sounds like bullshit. Mind you, I am fully aware of the effects of culture clash and the primary problem with migration booms. There will be problems. But this one specifically just sounds like a fabrication. We are the fattest country on the planet. You're telling me these motherfuckers are passing on the Big Mac?