Trump: "I'll tariff your aluminum."
Quebec: "Harder daddy!"
(no seriously, this is a brilliant move from Quebec. They hold all the cards here, they produce 75% of all the aluminum in North America, and importing from anywhere else is far more expensive because it has to go over an ocean, and shipping metal is fucking expensive. They know they'll get all this business back the moment the tariffs are lifted, so they can afford to just crank up the heat and wait for Trump to collapse.)