alt Hacker NewsIf truly 100% automation (including infantry/police) the most likely scenario is not any if the above; most people will be kept on some kind of minimum sustenance enough to keep them from rebelling (“UBI”) and those who disagree will either be coopted into the elite or eliminated.
There's no reason to keep anyone on minimal sustenance though. They're absolutely useless alive from an economics perspective, and so would probably be better served ground up into fertilizer or some other actually useful form.