You don't even have to automate all that and still achieve the goal of destroying both the human civilization as we know it: it was already existing in practice

You don't even have to automate all that and still achieve the goal of destroying both the human civilization as we know it: it was already existing in practice, simply by delegating (human) responsibilities and effective since the thermonuclear bombs were stockpiled. It's documented in the book: https://www.bloomsbury.com/us/the-doomsday-machine-9781608196746/ https://www.bloomsbury.com/us/the-doomsday-machine-978160819...