Generative AIs are very different from humans because they can be copied losslessly and scaled tremendously, and also have no individual liability, nor awareness of how similar their output is to something in their training material. They are very different in constraints and capabilities from humans in all sorts of ways. For one, a human will likely never reproduce a book they read without being aware that that’s what they are doing.
Let's be real, Humans have special treatment (more special than animals as we can eat and slaughter animals but not other humans) because WE created the law to serve humans.
So in terms of being fair across the board LLMs are no different. But there's no harm in giving ourselves special treatment.