Ship has sailed. Ottawa should offer to drop trade restrictions with China in exchange for Beijing doing the same. It not only provides a needed jolt to the Canadian economy, it also sends a message to the White House that Canada shouldn’t be taken for granted. (I’d also start making motions about green lighting energy-export terminals to Europe and Asia.)
China's tax on rapeseed oil is like Canadian tax on EV, as China imports very little from from Canada due to prior trade frictions. But its rapeseed imports almost exclusively depend on Canada.