And especially importantly, on per capita GDP. Immigration would almost certainly cause GDP to go up, but the per capita effects are important, especially on the original population. (Qualifier added because if the original population experienced an increase in per capita median GDP they might consider it net positive even if the recent arrivals had a lower than median per capita income, who might also be satisfied if that’s still 3x what they were earning elsewhere.)
I agree, directionally. To be even more precise we probably want an even better metric, but that’s closer yeah.
By a better metric I mean something that would even more accurately capture quality of life, healthcare outcomes, social ties, productivity within the home or family that isn’t tied to an income from an employer, etc.