Crypto isn't bad because it failed to make early adopters rich — it did make them rich. It's bad because it has horrible externalities in scams, war crimes / sanctions evasion, organised crime — which most of those early adopters were well aware of.
I think you can actually replace crypto with LLMs/Diffusion models in this sentence and it will still hold true
All those apply to AI too, no?
The way early adopters got rich was by scamming others, so not sure I see your differentiation there
You can make pretty much the same arguments for LLMs. Pollution, corruption, and war are all things I'm keen to avoid.