If you want to see basic income in action, look no further than the various Native American tribes who operate casinos throughout the country. The results are not pretty [1].
Perhaps - I wish the article went into more detail on annual disbursement size across the different tribes. It could be the case that certain basic incomes exacerbate poverty (e.g. the $1200 that Mike Justice receives from the Siletz tribe), while other basic incomes (say, hypothetically, 1.5x the poverty line) drastically improve quality of life.