Supposing there were a person or team who could rewrite Illustrator from scratch, it's still different from an AI rewriting it in a couple of ways.
Fundamentally, the people who are writing it are not property, they aren't an algorithm that has ingested other code and rearranged it. Therefore they are not simply a copying / pirating mechanism which can launder a pile of stolen code into a clean new application. At best they're either creative or they're pirates themselves.
When I write code, even if I want it to resemble something else and even if I resort to StackOverflow for help, I'm essentially writing. Nothing of that sort happens in the mechanical guts of an LLM.
Fundamentally, the people who are writing it are not property, they aren't an algorithm that has ingested other code and rearranged it. Therefore they are not simply a copying / pirating mechanism which can launder a pile of stolen code into a clean new application. At best they're either creative or they're pirates themselves.
When I write code, even if I want it to resemble something else and even if I resort to StackOverflow for help, I'm essentially writing. Nothing of that sort happens in the mechanical guts of an LLM.