The only UBI that I've heard of that didn't involve some sort of theft is this one:

http://iamcicada.com

It involves everyone mining crypto on their phone. If it involves taxation, then likely Keynesian economic theory follows and hyperinflation after that. This is why we invented bitcoin, to avoid bailing out the banks in the future by giving an exit to people who don't want to be held captive to QE theft in their national fiat.