I understand your point of view, but we can enrich it so that it is not superficial. This entails a philosophical discussion. Science is justified knowledge and the research carried out to produce it, it has to do with discovery and understanding. There is also a dividing line between Science and Technology, the latter having to do with development and invention. In practice, it is technology that can produce means potentially capable of making us extinct.
The "Nature" and "natural" state of things is also debatable. Humans and their inventions are ultimately part of Nature itself at a deeper level. It means that whatever we do is a consequence of natural laws, hence is natural. Even if we can intervene in many natural processes to break them, speed them up, or whatever, that is still a consequence of natural laws. Many people don't think so, but Medicine is a Science/technology that does indeed "intervene in nature" very aggressively, but no one finds that terrible. The debate should ultimately be about ethics, about what can be considered ethical, not about natural and artificial.
And many other things also have the potential to drive us to extinction and chaos such as politics, ideology and religion.
This is a concept I love to delve into, and I so much like how you perceived it, wether Artificial intelligence or Natural, its still part of Natural itself, as far as it's Man's own creation,
Man's thirst for Power, can be man's fall, take for example the issue of Nuclear and Biological Weapons.