From the latest Emerson poll, from 1/23-26/20 favorabilty of UBI is at 53%.
That’s up from 48% favorable/52% unfavorable in a Gallup poll in 2/18. Or up from 43% in a another Gallup poll comparing other countries in June 2019. Or up from 49% favorable/ 52% unfavorable in a The Hill/HarrisX poll in September 2019. In the video, they reported an increase from February 2019 which showed a 43% favorability with the same question.
Yang says that their internal polling shows UBI favorability at 61%.