You could argue that we already have forms of UBI in practice right now, but the UBI that gets referred to in tech circles with no significant tax structure changes just uses the government to guarantee more wealth accumulation for those already at the top. As the gulf between the workers and the capital class widens, it gets harder and harder for anyone to make the leap, and then we get the societies we see in Sci-Fi (ex. Elysium). It seems so absurd that people are pushing for UBI in a world where the US doesn't even have nationalized healthcare and a reasonable healthcare system. Talk about putting the cart before the horse.
I think the right-ish solution in the US can be oversimplified to:
- Reduce ludicrous defense spending in peace time - Increase corporate and top end taxes to what they have been historically - Resurrect unions - Fix job displacement with investment in education and job retraining programs with extra support linked to enrollment
Unfortunately, getting any of these things done requires an insane amount of political know-how, political will, coordination, and effort, and someone to lay out a plan and lead the effort, not even including all the problems with today's hyper-partisan political climate.