Why? Because the Canadian identity is defined by their main focus on ‘not being American.’ It’s all they know.
I can tell you specifically how it will materialize if you want, because I have already gamed this out. You might even make some money if you pay attention.
Toyota and Honda will do exactly what they have said they will do and exit Canadian manufacturing.
With full approval by Carney and the Canadian government, BYD and Geely will step in, purchase and take over those manufacturing plants to create vehicles in Canada (pennies on the CAD).
Canada will cheer because they will believe they just saved all those auto sector jobs. However, a few reality months later and suddenly it is all Chinese industrial operations bringing in Chinese workers to retool the factories.
Canada will end up paying unemployment benefits to Canadian workers, while Chinese factory workers prepare the facilities to manufacture BYD and Geely autos. The Canadian people will grit their teeth, yet do nothing because they accept their provincial government has already been corrupted by Chinese money.