McDonalds exists and is more or less synthetic food. But we still cook at home, and also want food to be cooked by humans. Even if food gets to be 3D-printed, some people will cook. Likewise people still write, and draw paintings. So these two phenomena are bound to coexist, perhaps we don't yet know how.

This is hardly a suitable analogy.

Big tech is inserting LLMs before content. They're using people's work to compete against them and strangle them out.