"crunch through half a terabyte of weights" isn't thinking. Following grammatical rules to produce a readable sentence isn't thought, it's statistics, and whether that sentence is factual or foolish isn't something the LLM cares about. If LLMs didn't so constantly produce garbage, I might agree with you more.
They don't follow "grammatical rules", they process inputs with an incredibly large neural net. It's like saying humans aren't really thinking because their brains are made of meat.
