No there’s no realistic scenario where that is true; that requires assuming (aside from “landlords capture all marginal income increases, as a first order effect”, which is silly in itself) that (1) the inflationary effect of the additional spending of UBI is offset by taxing money out of the economy (otherwise there is no increase in wealth for landlords to capture), and (2) that tax does not fall more heavily on “rich landlords” than society generally.
> There is no fixed price for housing, it's based on what the market will bear
That's true of essentially all good and services in the economy in the economy under a market system. Its true that some parts of the US have artificial housing supply constraints, but those are also under policy attack.
> If suddenly everyone has X to spend on housing then the landlords will decide that the price is X * 0.3.
A UBI of $X, in any realistic scenario, doesn't mean that everyone has +$X of additional disposable income, the difference from traditional welfare programs is that instead of a rapid clawback creating an area somewhere in the poor to middle income range where additional outside income has little, zero, or sometimes negative impact on program-inclusive income, clawback is shifted into the progressive income tax system where it is never (except maybe at extremely high incomes) consumes the majority of marginal outside incomes, definitely doesn't consume >100% of marginal outside income, and doesn’t kick in any significant way below the middle of the income distribution.
(This also eliminates having a separate mechanisms for income verification and clawback through benefit adjustment, simplifying benefits and rolling that function into changing the numbers in the tax system in a way which doesn't increase the overall work of assessing and collecting, so that you also burn fewer resources on administration.)
What is the minimum? Something like a tiny bedroom, with a shared bathroom and kitchen (there are very few of these in the world so we have to build it - including zoning changes to allow it). You eat "rice and beans" that you cook in that kitchen because you can't afford more. You sleep on the floor because you can't afford a bed. You get two outfits that you have wear until worn out - and wash in the sink because you can't afford a washing machine or laundromat. You don't get TV, phone, internet - if you want those luxuries you have to work for it. You can borrow books from the local library, but otherwise you don't have entertainment options.
If we limited UBI to that level it is easy to see how the vast majority will want more luxury and be willing to work a job to get it. However the above is bad enough that I'm not willing to allow the truly needy to live like that, so we end up still needing welfare for those who need help (not to mention my point elsewhere that the needy often need help other than money).
The only human drive I can think of strong enough to overcome that is that it would probably give you better access to mates or prestige in the community, thus some people would be willing to do it. However you'd have to have an insanely efficient production infrastructure for it to cover all the necessities, I'd guess.
Envision for a moment a society where most of the most attractive women want to date the richest guys. And the way to become the richest is to produce things. Conceivably a large group of men would still work despite UBI so they can get with the "hottest" women.
Put this at grand scale and you have why a lot of men bother with anything more than living in a tent by the river. If that production is high enough to actually produce enough necessities it might work, but would require some insanely efficient production.
Human nature dictates that, while there may be "many", they would never even get close to being a majority. Hardly anyone wants to "just scrape by".
I’m just saying, I know where the money is. One man’s “right” to own a billion dollars doesn’t outweigh providing the base needs of living to everybody.
Change billionaires to top 1% wealth holders (>$13.7M) and things are more tenable. You could run the $33k/adult-year program for 6 years, or invest at 7% return for $13k/adult-year. You probably can't get a 7% return for at least a few years after second-order effects on the economy and I don't know what those effects would be long-term, but these numbers at least pass the smell test.
That wealth doesn't become cash unless there is a giant pile of cash owned by someone that can be used to buy the assets at the notional value. Where is that cash going to come from? It can't come from the government printing money since that is just inflation with more steps.
People like the idea of UBI on an emotional level, and they would probably support UBI, even if the wealthy and powerful of the world came out and had a joint global press conference, declaring that the whole purpose of UBI is a fraudulent plant to further enrich themselves at the expense of everyone else on the whole planet and that UBI is just the vehicle for doing that. The response would be something like “ok, but when do I get UBI”.
Whatever the processes in humans is that allows such things to happen, it seems very common across most domains, even in fields where one would believe that everyone is logical and applies scientific principles, only to find out that no, if emotions clash with scientific logic, then clearly the scientific logic must be bent and manipulated to meet the emotion.
Another way of looking at UBI is simply as an adjustment to the tax system that shifts the baseline of the tax curve to that people with less than a certain income receive money instead of paying it. This probably works better in countries hat have a more nearly smoothly varying progressive tax rate than those like the UK which have just a few widely spaced thresholds.
Then it is simply a case of adjusting the parameters of a fairly simple formula so that the total tax revenue is as it was before and that the minimum after tax income is something one can live on.
The general idea is that in civilized countries you are paying out the money anyway, just less efficiently.
The market won't magically provide all the services that people need. The government would have to have some mechanism that made sure that all the necessary services were available to everyone.