I can grant you this much: a number of posters have found reports where some Northern newspapers expressed such concerns.
But none called for war to redress the concern.
Just as today, economic concerns are a major focus of politics, and the Chinese or Mexicans are blamed for "stealing our jobs".
Actually, our own leaders are blamed for negotiating such bad deals.
But regardless of these heart-felt concerns, nobody suggests we go to war against anybody to bring our jobs back.
So in early 1861.
Economic concerns are one thing, war is something else entirely.
“But none called for war to redress the concern.”
He must have missed this one.
3/22/1861 The economic editor of the New York Times said,
“At once shut down every Southern port, destroy its commerce, and bring utter ruin on the Confederate States.”d
Sounds like calling for war to me. How about you?