Marginal cost is an economic term. I’m not using the term colloquially to mean small or insignificant. Of course manufacturing is an ecosystem which builds up

Marginal cost is an economic term. I’m not using the term colloquially to mean small or insignificant. Of course manufacturing is an ecosystem which builds up over time, with positive feedback loops where investment drives further efficiency throughout the supply chain. All the more reason to raise tariffs now, and hope that they stay high for enough years to stop the ongoing atrophy in the US ecosystem. It’s not just because China’s an unfair competitor from a labor rights and environmental impact perspective. It’s also a massive national security issue.