I don't see how that's true. Isn't the UBI supposed to replace ALL of those programmes with a single number for everyone that is sufficient for everyone? If the UBI provides enough for food and shelter you shouldn't need housing benefits. Disability may be different I suppose but if you cannot meet your needs with UBI due to a disability I think that's something you could probably roll into the NHS where equipment you need but cannot afford is provided to you by them (I haven't really thought that through though it's a very good point you've brought up).