Confluence, the tariffs were designed to do two things: Force foreign nations to lower their tariffs or face reprisal, and when the tariffs were implemented, to promote manufacturing in the United States. The undeniable fact is that since the US had a massive trade deficit with the nations subject to the tariffs, the end game was never a winner for the foreign nations - never. They needed the US markets much, much more than the United States needed their exports.
The trade deficit with Canada is driven by oil and gas imports. The tariff promoted energy production in the United States. The broader result was a positive increase in manufacturing in the United States the past two-plus years.
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Further, as you pointed out, Canada is spending significantly more on border security because of the tariff and tariff threats. So the idea that the tariffs and tariff threats did not produce significant manufacturing increases in the United States is wrong; the tariffs and tariff threats forced dozens of nations to starting paying for their own defense rather than simply having American taxpayers foot the bill; and the tariffs and tariff threats led directly to a massive downturn in illegal immigration and a border that actually means something.
The crescendo of tARiFfS BaD was always a comment about tariffs imposed by the United States against other nations, never the tariffs imposed on United States exports.