Trump’s tariffs make Canadian stuff more expensive for Americans, so they’ll tend to buy less Canadian stuff.
Without retaliatory tariffs, Americans only buy American stuff, and Canadians continue to buy American stuff, so nobody is buying Canadian stuff. This hurts Canada because nobody is buying their stuff.
With retaliatory tariffs, US stuff becomes more expensive in Canada, so it encourages Canadians to stop buying American and spend their money in Canada.
Trump’s tariffs make Canadian stuff more expensive for Americans, so they’ll tend to buy less Canadian stuff. Without retaliatory tariffs, Americans only buy American stuff, and Canadians continue to buy American stuff, so nobody is buying Canadian stuff. This hurts Canada because nobody is buying their stuff. With retaliatory tariffs, US stuff becomes more expensive in Canada, so it encourages Canadians to stop buying American and spend their money in Canada.