I think the the main difference is one being a human author and this is how humans function. We can not unsee or unhear things but we can be compelled to not use that information if the law requires so company secrets/inadmissible evidence in jury duty/plagiarism laws that already exist. And the other being a machine that do not have agency or personhood that has this information being fed to it ( created by other people ) for the sole purpose of creating a closed system for a company so it's shareholders can make money. It's this open for me but not for thee approach is the main problem people have. You have this proprietary "open ai" that microsoft invested 25 or so billion in so they can scrape other peoples work and charge you money for variations of it. I don't mind abolishing ip or patent laws all together so everyone can use and improve chatgpt with whatever they have. If you yourself are hiding behind ip laws to protect your software and disrespecting other peoples copyright laws that's what people see as problematic.