On one hand I find the arguments based on devision of labor very conviencing.
I think the first description of this was Adam Smith about Portuguese Wine and English Cloth. This is good for the economy long term and in macro - without a doubt.
On the other hand I think protectionism can lead to more resilient economies since they are less intertwined and more redundant jobs/supplylines.
I thought about this yesterday and can't come to a conclusion.