What do you consider as "productive"? Look at animals in a zoo, do they look productive to you? They have "a universal basic income", they simply don't need to be productive. Humans, just like animals, are productive when they are trying to achieve something (catch food, find mates, and for social animals to establish their position in a society which leads to food, mates etc.). E.g. you are developing OSS -- ask yourself why? Forget about money for a second. Are you doing it for yourself only, just for a pure fun of manipulating characters? Or you expect your software to be used by others? Revered by others? So if it's useful for others do you expect them to use it for free and pay you through taxes via the universal basic income (relying on a government to do a "fair" distribution), or maybe just pay you directly thus showing that very reverence? So it's just a distribution problem. If you don't want to worry about selling your software, then let others do it (it's called "working for a company"). As opposed to a government, which can pay for a work not needed for anybody (not very efficient, but that's what governments do all the time). Want to spend more time with your family? Don't buy the latest iPhone or an expensive car and work remotely part time, you will be able to spend more time with your family. There are tons of possibilities. Yet people do want the latest iPhone and then complain they don't have time to spend with their family or do "what the like".
So is all of humanity, we call them jobs and debt. Almost all of those animals lives would be considered luxury by human standards. No worries about food, a safe place to sleep, or predators.
A lot of people have to work two jobs just to afford food and shelter. Granted there are also people trying to live a Champaign lifestyle on a lemonade budget, but how do you address the first group?
This world is not fair, do you know how to fix it? I don't. There are different models with different degrees of fairness, but all have their downsides.
