Let's say that technology has advanced so far that anyone can program their own AI on their laptop. Billions of super general AIs are made, each with their own unique and random programming.
The question is, which of them ultimately survive? The more innocuous AIs don't do anything and get quietly deleted. The AIs that behave like a virus, taking over as many resources as they can, will.
So wouldn't AI undoubtedly cause the extinction of humanity?