Never going to happen. Labor rights are horrid in most parts of the world, and our current economic system glorifies that. Labor is also the one thing that the general populace can leverage against the ruling class, or in the case of automation; the owner class. There's no reason for UBI when wealth can be consolidated without economical downside. The spheres are being automated as well (intellectual, comp-sci, medicine, art...etc) are the well-paying, prestigious jobs in the world. Not everyone can be a soldier, plumber, or even grocery stocker. Most blue collar work takes a toll on the body, and entry-level, physical work pays pennies.

People will be left to struggle, fend for themselves, and we'll just have to see where that takes us.