That's right. It is not hard to imagine similarly disastrous GPT/AI "plug-ins" with access to purchasing, manufacturing, robotics, bioengineering, genetic manipulation resources, etc. The only way forward for humanity is self-restraint through regulation. Which of course gives no guarantee that the cat will be let out of the bag (edit: or earlier events such as nuclear war or climate catastrophe will kill us off sooner)
Why not regulate the genetic manipulation and bioengineering? It seems almost irrelevant whether it's an AI who's doing the work, since the physical risks would generally exist regardless of whether a human or AI is conducting the research. And in fact, in some contexts, you could even make the argument that it's safer in the hands of an AI (e.g., I'd rather Gain of Function research be performed by robotic AI on an asteroid rather than in a lab in Wuhan run by employees who are vulnerable to human error).
We can't regulate specific things fast enough. It takes years of political infighting (this is intentional! government and democracy are supposed to move slowly so as to break things slowly) to get even partial regulation. Meanwhile every day brings another AI feature that could irreversibly bring about the end of humanity or society or democracy or ...