I don’t disagree with most of your analysis.
Especially your point about automation. Now imagine a world where the US can make things again at a cost competitive rate due to automation. Ok, now look at how those goods would be taxed overseas...
We still would have an export problem due to other country’s protectionist tariffs.
The point of the trade negotiations is to get better terms for US exports. This is critical as we come to a turning point in manufacturing.