1 It is COPYright
Applies when work is copied. Storing in a digital format is creating a copy. This doesn't usually happen when a person reads, listens to, or looks at a thing. But does happen when training LLM. Plus some statistics.
2 LLMs are not general AI. They cannot think.
If we rely on LLMs for our words, pictures, music etc we will never have anything new. Only rearrangements of things that already exist. That is how they work.
3 In that sense, what we are told about LLMs is a con. They are a cul-de-sac for the human race because we are told we are getting something new from them when all we can possibly get is recycled. They cause stagnation in our thought process.