Except they kinda are? LLMs are just word models built from a corpus of the internet. There are examples of GPT3 regurgitating reddit comments in full given the right prompt. Certainly I find LLMs replace a lot of searches for me and google/microsoft is right to eat its own breakfast to get ahead of it.
Google has become so horrible that an LLM that is right 80% of the time is better than a search that has links to pages that are 90% spam and ad covered pages.