I've always respected your writing, but will have to disagree.
The first line of your 'about me' section says: "Always Systems Thinking". However, I don't believe you are thinking in terms of systems here. You are thinking in a single-loop fashion, by treating immigration as a one-way input (i.e. more workers -> fewer jobs for Americans) and as the gate for a massively multi-input system.
You said we should wait for full employment first. The issue with that logic is that full employment isn't a finish line you reach and then "unlock" other labor sources. Even a hot economy has frictional unemployment, skills mismatch, geographic mismatch, and people moving between jobs. Using full employment as a policy trigger sounds clean but doesn't map to how labor markets actually function. Empirically, the US is not a long way away from full employment: we're at 4.4% unemployment (or were, as of September 2025) and JOLTS showed 7.7 job openings in October. That's a cooled market, but not mass desperation across the board.
Jobs are not a fixed pie either. In a closed, fixed-input model (which is what underlies your thinking), adding foreign workers could mechanically reduce citizens' chances. But real economies are endogenous: Immigrants aren't just labor supply; they are also demand. They pay rent, they buy groceries, they need childcare, cars, you name it. That demand supports additional hiring. In addition, immigration can relieve bottleneck in sectors such as healthcare (which is suffering greatly at the moment, especially in rural areas), construction, logistics, agriculture, elder care, and so on. This is why high-quality syntheses generally find small aggregate impacts on native employment and wages, not the large scale negative effects the "hire Americans first" framing implies.
A major National Academies consensus report [1] concluded that the long-run impact of hiring immigrants on wages and employment of native-born workers overall is very small, if not non-existent. And any negative impacts are most likely from prior immigrants or native-born high school dropouts. The report found that immigration as a whole has a positive impact on long-run economic growth. Many meta-analyses [2][3] have found similar results.
The solution is not to restrict foreign workers, but to protect wages and working conditions by strictly enforcing labor standards and preventing exploitative hiring (across both the foreign and native labor forces), and to use targeted immigration that addresses genuine bottlenecks. Using a single unemployment threshold is not logical because labor markets are segmented and dynamic.
[1] https://www.nationalacademies.org/projects/DBASSE-CNSTAT-13-...
[2] https://www.iza.org/publications/dp/2044/the-impact-of-immig...
[3] https://www.cepii.fr/PDF_PUB/wp/2025/wp2025-07.pdf