There's no thought or reasoning behind anything LLMs generate, it's just a statistical pile of stuff. It's never going to generate anything new. It literally can't.
However, they are really good at highlighting just how many people will believe nonsense stated confidently.
It can't on it's own. But why does it need to? As a tool, the user can provide insight, imagination, soul, or guidance.
And let's be honest, very little in our life, work, entertainment or science is completely new. We all stand on the shoulders of giants, remix existing work and reinterpreting existing work.
If it's the latter, then agreed it doesn't produce anything new but so doesn't most of humanity and it doesn't need to, to be able to be of assistance.