How has technology created the billions of jobs that people do today, that didn't exist a hundred years ago?
Ever noticed how the more sophisticated technology becomes, the less reliable it gets? What will those 5-10 people do when the first component fails? Where do the machines come from in the first place?
Machines will never 'run themselves' .
You're also still deliberately ignoring how the more automated things become, the cheaper everything gets, and therefore the less people have to work to live. These are basic laws of economics. Here's a very quick and easy primer if you want to get a grip on them (try skipping to page 33):
https://mises.org/system/tdf/Henry Hazlitt Economics in One Lesson.pdf?file=1&type=document