You read the first study? The money was not given to those that has substance abuse, mental health symptoms or alcohol abuse because they felt they represented a small portion of the homeless. Was given to people that were sleeping in friends house and some in cars and didn't abuse alcohol or drugs. That is a joke of an experiment and in no ready ubi. Not does it indicate on any meaningful way how it is paid for as it doesn't include everyone.
The second study found only 3/4 of the people continued to work and ultimately the 150 million dollar program was cancelled because it did not appear to increase contribution to society in any economic way.