Too many bad arguments to count here... for example, he argues:

"Rather than giving everyone $1,000 per month, a guaranteed-income program would offer transfers only to individuals whose monthly income is below $1,000, thereby coming in at a mere fraction of a UBI’s cost."

Can you not see the obvious problems with giving someone $1,000 so long as they aren't making above $1,000? Why would anyone making $1k continue working for zero benefit?

With UBI, a minimum wage worker is still incentivized to work, as they don't lose benefits. That's kind of the point. Social safety net without getting trapped in the "net".

UBI has plenty of issues, but he's not making a good case.