There are lots of articles about bad use cases of ChatGPT that Google already provided for decades.
Want to get bad medical advice for the weird pain in your belly? Google can tell you it’s cancer, no problem.
Do you want to know how to make drugs without a lab? Google even gives you links to stores where you can buy the materials for it.
Want some racism/misogyny/other evil content? Google is your ever helpful friend and garbage dump.
What’s the difference apart from ChatGPT’s inability to link to existing sources?
The problem is that the ones that will benefit from AI taking over are the big companies that create such AIs - Google, Meta, Apple. They will grow exponentially by having AIs work for them 24/7. So its not like himanity as a whole will grow, it will just be these companies, and they will slowly become the rulers of humanity.