Hm. I didn’t argue against anything of what you’re saying here. I’m just saying that it arguably isn’t “enshitification”.
Enshittification is the pattern of decreasing quality observed in online services and products such as Amazon, Facebook, Google Search, Twitter, Bandcamp, Reddit, Uber, and Unity
I don’t see how this is very contentious either.
https://youtu.be/UjtOGPJ0URM
This covers it pretty well.
If you want a very short version: a hypothetical eventuality in the technological advancement of intelligent life, as to limit their existence.