Earlier quoted context omitted.
If you give people a universal basic income, you need to both increase taxes a lot and completely restrict immigration - a basic income in the US is incredibly luxurious for people who live in sub-saharan Africa. Or else the universal basic income is going to be too low in first world countries to make a difference.
Or you just start taxing corporations and rich people again. Some stupidly huge percentage of dollars are just sitting in their coffers doing nothing.
You can see this in one of the founders of Facebook - he renounced his US citizenship, because of the onerous tax burdens. (https://bits.blogs.nytimes.com/2012/05/11/a-facebook-founder...)
It's foolish to just say "we should tax rich people and rich corporations more." You're incentivizing them to not play the game, and wealthy people generally have more abilities to evade taxes than people in the lower upper class or middle class, which is who the burden will inevitably fall upon.