Sure but wouldn't it be nice if you could force the population to do things by making them 100% financially dependent on the state? Not only that, politicize the issue so that half of the population accepts the new narrative and provides a buffer so that no one revolts as both sides duke it out.
What's the point of automating production if there is no one around to buy products?
You have to look at these things on a macro scale. The government is providing UBI while Amazon updates automation. Amazon was already committed to automation before the economy even went to shit. Every corporation and government is a separate entity and they are all haphazardly interacting in a worldwide clusterfuck. Whereas what you've just described assumes that one entity has unilateral centralized control over everything.