Canada’s boycott is retaliation for unnecessary and irrational tariffs. Canada LNG, oil, potash, critical minerals, etc will instead go into the global market. There is nothing Canada sells they specifically need Americans to buy except perhaps electricity and auto parts/assemblies.

> Last year, Canadian exports of energy products (oil, natural gas, power) to the U.S amounted to nearly $170 billion, or almost 1/3 of total shipments. In contrast, energy accounted for only 6% of all U.S. imports. Put simply, Canadian sources are critical to U.S. energy security.

https://economics.td.com/ca-canada-us-trade-balance

I don't know a single country in the world that wouldn't do this if another country did to them what the US did to Canada. Even a lot of US citizens seem to agree. May be consider your own standing first?