That is an extremely disingenuous take. It produces novel output, so is not merely an “index” in any sense of the word.
The illusion of creativity is similar to that of technology. Sufficient advanced technology is indistinguishable from magic, and sufficient advanced math is indistinguishable from intelligence. The relation between AI and math is the same as the relation between magic and technology.
Infringement isn't about how the infringing system works, it's about the product of that work.
Exactly this. It makes zero difference that you produced your infringing work with the help of a program that happens to be extremely complex and marketed as "AI".
It's just a tool used by the developer; the onus is on the developer to ensure they don't infringe the licenses of the source code they incorporate in their software. Since Copilot makes it impossible to know where it's barfing code up from and what license that code is under, a developer who cares about not getting sued probably needs to avoid using Copilot.
The tool itself lacks agency, it did what it was programmed to do.
If you took the tool's suggestions and proceeded to published a derivative work, you may have infringed.
This really doesn't feel any different from P2P filesharing services. Rightsholders have targeted tool publishers in the past, because they are the largest single target and not anonymous; but ultimately the infringement is performed by the end user.
It is not the same as a human, no, but it's not hard to choose a definition of the word "intelligent" that can accurately describe something that can be done by a program.
When a human walks around a puddle, are they demonstrating intelligence? When a horse avoids stepping in a hole, is the horse intelligent? When a robotic vacuum avoids a stairway, is it intelligent? When a self-driving car avoids a bollard, is that intelligent?
Whether there's a being inside the device that believes it experiences consciousness or not, the same outcome happens. A Searle's Chinese Room that produces copies of Chinese IP, a trained monkey that does so, or a human that does the same thing, the outcome is very similar.
Of course it isn't the same as a human programmer doing anything. It's a complex piece of software, which we happen to misuse the term "AI" to describe, but it is not intelligent.