Hmm--The high hand of Mr T--from Atlantic Council--excerpt.--It's as I thought.

Moreover, deportation of undocumented immigrants could reduce the growth of the labor force—88 percent of which has been due to net increases in immigrant workers in recent years. This would weaken GDP growth. Implicit in this scenario is that labor productivity, which has grown by 2.3 percent per year from 2023 to 2024, would revert back towards its 2010 to 2022 average rate of 1.5 percent.