The funniest thing is it's the same basic argument as free market Vs planned economy. The individual knows better what they need right now. Why this doesn't appeal more to the right than it does says a lot about a good chunk of right wing politics.

The current system is akin to a planned economy. You are told what you can spend the money on, and what you can't. UBI lets the end recipient decide where it's most useful. E.g. for one person, a car is a worthless expense, while better food makes a big difference. For another, they are ok living on cheaper food for a while, but a replacement car would let them bootstrap themselves upwards, economically.