Six Crossings: Why Tariffing Canada Means Tariffing Detroit

The Numbers They're Not Putting in the Press Releases

Ford, GM, and Stellantis have all reported parts shortages affecting Midwest assembly lines since the 25 percent auto tariffs took effect. Industry analysts — not the liberal kind, the kind who get paid by car companies to be accurate — are projecting north of 100,000 American job losses if the tariffs remain in place through summer [3]. New vehicle prices are expected to rise by $8,000 or more on affected models, according to trade analysts who tracked the supply chain response [4]. That's not a price increase that hits hedge fund managers. That's a price increase that hits the people who actually need a truck to haul their tools to work. The median American family buys a car by financing it at 7-8 percent interest. An $8,000 price spike is a monthly payment that goes up by sixty, seventy dollars and doesn't come back down for six years. Meanwhile, on the Canadian side of the Windsor-Detroit corridor, tool shops and parts fabricators are down 70 percent in orders since the tariffs hit [1]. Which sounds like an American win, until you notice that their American counterparts who depended on that supply chain are down the same amount. The factories don't care which flag is flying. When the just-in-time supply chain breaks, it breaks on both sides of the river.

Canada Didn't Wait to Hit Back

Mark Carney's government filed retaliatory tariffs on American goods within nine minutes of Trump's announcement [4]. Nine minutes. You can't order a pizza in nine minutes. Canada had the response pre-loaded, pre-approved, and ready to launch, because — and this should not have surprised anyone — Canada was paying attention. The retaliatory tariffs target American agricultural products, consumer goods, and manufactured imports. That means American farmers, American food processors, and American manufacturers who export to Canada are now absorbing costs they didn't plan for, to offset a trade dispute they didn't start and don't benefit from. The grain farmer in Iowa doesn't have a union contract to cushion the blow. His crop prices just moved in the wrong direction because Washington decided to get tough on engine brackets [4]. This is what "trade war" means in practice. It's not a negotiating tactic where you do the tariff thing and then everyone sits down and makes a deal. It's a cycle of retaliation where both sides lose, the industries that serve as targets had no say in the matter, and the workers who depend on those industries find out about it when their hours get cut.

The Workers Nobody Warned

There's a version of this story that gets told inside trade policy circles — about instruments and frameworks and whether Section 301 is a more durable enforcement mechanism than IEEPA. The legal architecture debate has its place. Lawyers will continue to be paid handsomely to have it. But while that conversation happens in well-appointed offices, Marcus is sitting at home wondering if his plant is going to need to cut a shift. The workers in the supply chain didn't get a briefing on trade law before they built their lives around this industry. They built their lives around this industry because it worked — because the integration of the North American auto supply chain created good, stable, union-protected jobs on both sides of the border. And those jobs are now absorbing the collateral damage of a trade dispute framed as protecting them. The cruelest part isn't even the economics. It's the framing. These tariffs were sold as protection for American workers. The workers being asked to absorb the consequences of integrated supply-chain disruption are American workers. The families who will pay more for a new truck are American families. "Protection" shouldn't make the thing you're protecting more expensive and less stable.

What Actually Protecting Workers Looks Like

Here's the thing: there are real, legitimate grievances underlying the administration's trade agenda. China's state-directed overcapacity in steel and semiconductors is a genuine market distortion. Supply chains that run through authoritarian governments with forced labor practices create real security vulnerabilities. A trade policy that acknowledges those threats is worth having. But Canada is not China. Canada is a democratic ally with whom the United States has a treaty — the USMCA — specifically governing auto trade and supply chain standards. The USMCA already has enforcement mechanisms for exactly the kinds of supply chain manipulation that the administration claims to be fighting. Using those mechanisms requires work: actual investigations, evidence, consultations with affected parties, targeted remedies [3]. What it doesn't require is a blanket 25 percent tariff that hits Michigan supply chains as hard as Ontario ones. A trade policy that actually protects American workers starts with the workers. It asks which industries are genuinely threatened by unfair practices, what targeted remedies address those specific threats without blowing up integrated supply chains, and — critically — what happens to the workers in the collateral zone when the artillery starts flying. Those questions have answers. They just require doing the work instead of announcing the tariff [4].

Marcus isn't asking for a briefing on Section 301 investigations. He's asking whether he'll still have a job when the supply chain sorts itself out — assuming it does. He voted for a president who said manufacturing jobs were coming back. What's coming back to his plant right now is uncertainty, reduced hours, and a manager who doesn't know when the Canadian parts are going to clear customs again. That's not protection. That's a trade war being fought with other people's livelihoods as the ammunition. The tariff was supposed to make America stronger. Tell Marcus how it's working out.