Earlier quoted context omitted.
Right, but the point is that this will change the whole system. How many talented artists decided to become stockbrokers instead, simply because they wanted financial stability? Or how many parents encourage their children to follow something "practical" and not what they are truly passionate about? Or academics that love their subject, but don't want to bother with the hassle of adjunct positions and constant reloca…
If you believe in UBI, and you have an average US income, you can already do your own UBI scheme by donating some portion of your income to a group of people in a poor country. Have you done that? If not, why not?
(Though I agree that the targeted poverty relief payment to those with the greatest need for extra dollars would be a better use of the funds)