I'm sorry but this is simply not true.
Look at a basic case, a single farmer is able to produce enough food for 100 people.
There is no need for 99 people to work for there food in this simplistic case.
Yes, these people may want iPhones, and maybe they need to work for them, but the basic income component is covered by a single farmer.
I'm not saying there is some static pool of work available.
I am saying there is a static pool of life sustaining work available.
This is why ubi works mathematically, and people not working are not a problem, for the maths.
> Whether or not people are given what they need to survive is irrelevant to UBI. Welfare does that.
What are you talking about, this is the point. And no, welfare does not do that adequately. Welfare is an incredibly inefficient means of wealth distribution.
> What makes UBI worse is that it provides no incentive to work and create value, and that's a tremendous waste of human capital
I have zero concerns about the incentive to work, that is a fud argument that doesn't hold up when looking at the studies we've seen. Work is meaningful in and of itself, you don't need to be paid to receive reward from it.
> and it worsens inequality.
This is what I'm afraid of too and have not heard any ubi proponents address this in any meaningful manner.
Ubi would quite likely create a proletarian class.
On the flip side, I'm not really sure how this is very different from what we have with capitalism right now.
At least with ubi welfare is adequately taken care of.