This analysis doesn't seem to account for the savings and increased efficiency from all the policy changes basic income would enable. For example, water and parking spaces could be priced at their actual cost, rather than being subsidized. This would make the water market function properly and allocate it efficiently, and remove a bunch of car-related externalities. Need public housing? Not if you set a high enough b…
Prime example here is Medicare - it has an (albeit limited) ability to dictate the prices to participating providers due to its size. Remove the program, and everyone is left out to negotiate with their medical provider on a case-by-case basis, and we already know how well that worked out in practice (googlable via "runaway healthcare costs").