That was what I meant by "not allowed to sell/ship less".
I guess this is a novel new way around trade agreements - just add costs that only meaningfully apply to external products (e.g. "a carbon tax for all products that travel more than 6000 miles from site of manufacture or farming to the location of sale or final customer delivery" - sure that doesn't say it's an import duty, but it sure as hell means nothing from the US is subject to the tax in the US, but anything from china would be covered)
I guess this is a novel new way around trade agreements - just add costs that only meaningfully apply to external products (e.g. "a carbon tax for all products that travel more than 6000 miles from site of manufacture or farming to the location of sale or final customer delivery" - sure that doesn't say it's an import duty, but it sure as hell means nothing from the US is subject to the tax in the US, but anything from china would be covered)