Yeah but I think Yang knows that , and he uses UBI as a symbolic image of the fact that good jobs are going to become increasingly hard to find and that makes most people anxious. It's sort of how trump used "the wall" to appeal to the anxieties of people with insecure jobs. It's a good focus point though, that appeals to reasonable people more than "just tax the rich" (which is shortsighted anyway; what 's the plan when the rich are no more?). My current bet (as a non-american) is that if the democrats manage to select Yang, he will win, otherwise it's going to be a much worse trump 2nd term