Massive environmental harms

I find this questionable; people forget that a locally-hosted LLM is no more taxing than a video game.

No chance it’s going to get better

Why do you believe this? It has continued to get dramatically better over the past 5 years. Look at where GPT2 was in 2019.

No consistently usable product other than beginner code tasks

It is not consistently usable for coding. If you are hoping this slop-producing machine is consistently useful for anything then you are sorely mistaken. These things are most suitable for applications where unreliability is acceptable.

No profitable product [...] Tens of thousands of (useful!) careers terminated

Do you not see the obvious contradiction here? If you are sure that this is not going to get better and it's not profitable, then you have nothing to worry about in the long-term about careers being replaced by AIs.

Destroyed Internet search, arguably the one necessary service on the Internet

Google did this intentionally as part of enshittification.