Economies need a distributed system based on markets and prices.
UBI maintains the price system. You get your $1,000/month or whatever and you spend it as you see fit. Supply and demand and the price mechanism still work regardless of where you got your $1,000 from.
Think of it this way. All economic growth ultimately comes from productivity gains. Productivity is units of output per unit of labour input. Last year a single baker could make one loaf of bread per day, this year he can make 100 loaves a day, next year he can make all the bread for everyone on the planet.
Over the last couple of decades US manufacturing output DOUBLED. Yes, not only are things still made in America, but you are actually making TWICE as much stuff every year that you used to make in 2001. But your doing it with a third less workers...because of productivity gains. (not trade deals).
So what does 2040 look like? Will USA double its output again with another third less workers? and so on and so on.
You tell me where that leads?