Yeah, the LLM and picture generation bubble will burst but that isn't 'AI', it's a tiny subset of tasks that happen to be easy to train because the companies involved have helped themselves to all of the text and images created by humanity.
The other uses of AI are harder to train, because we don't have centuries worth of robotic motion data or a YouTube of folded protein data. Those are the uses that will have the most impact in the future, as they are developed.
LLMs are a bubble, AI is not.