My opinion is that UBI would need to be established as a quasi-right at a minimum, similar to how we talk about Social Security (third rail of politics, etc).
It is much easier to get locked out of the market for jobs that pay a living wage than you realize. If you have a bad credit report or a criminal record, those un-centralized instances start to behave like a single point of failure. And you definitely don't have any recourse.
I'm aware it's not perfect. I just don't think you realize you want to take exactly the thing that is wrong about our current situation and make it the core feature of society.
The fundamental difference is that UBI would be subject to democratic processes. The private economy is not. Not that democracy is working all that well right now...
I don't want UBI; I want people to have some assurance they will be able to eat tomorrow.
It is much easier to get locked out of the market for jobs that pay a living wage than you realize. If you have a bad credit report or a criminal record, those un-centralized instances start to behave like a single point of failure. And you definitely don't have any recourse.