Why is AI and robotics expected to dominate? Because costs are reducing vs gov has made it too expensive to hire labor. Minimum wage hikes have accelerated this. The Obamacare disaster has made health insurance impossibly expensive. So, why hire a human when a kiosk is more efficient. Adding UBI or work requirements will accelerate this trend to reduce labor.
Without capital, who can buy the goods that robots create? Why bother creating things if there are no buyers? There will be a natural cap on the extent of AI, but mucking around with income levels will encourage higher rates of robots, as more goods are consumable per customer.
Basic Universal Income must come from somewhere, via wealth redistributuon (taxes) or inflation. If you get a free $1000/mo, are you bringing price controls too? Why bother cutting costs when the market has free capital to spend? A business will have to raise prices to cover the taxes to support UBI, which will balance at a new higher price for everything. When everyone has money, money is worthless.
But not everyone is going to get money, just citizens of the government. So you are incentivizing immigration. Since every new entry is added cost of UBI, legal immigration will cease, births should be taxed, and end of life exit encouraged. Illegal immigration would go insane, as people try to enter the system by any means.
So a job guarantee is the better choice, but just as bad. An individual would be guided into a career that the central gov will choose for them, based on skill and demand. Field labor, infrastructure, mining, utilities is hard work. Someone must gather materials to make new robots. Not the cushy desk jobs or art programs that everyone expects. If everyone works, then there is the same demand for entertainment not more, and there are enough unemployed artists already. So you go into a career or you are forever returning to academics for retraining to find one you like. That costs money too, so expect lock in period requirements to stick with a job, and reductions in personal freedom.
And when a job is given, how is it taken away? Exit protection in Germany today makes it near impossible to fire a bad worker, so businesses are very reluctant to add workers, which leads to extremely high entry requirements. This pushes overqualified people into easy jobs, and displaced the average citizen. So expect total control of everything, since the gov will need to allocate labor better than the individual. You will be told where to work, so donâ(TM)t expect to like it.
Historically, every time these top down practices are tried, the people eventually try to escape it for other countries with more freedoms. Or they are crushed. What is the value of a life when everything about it is an expense?