Tarrifs are simple, easy, and can be implemented immediately by the Prime Minister alone. All the other things listed in that comment are fine ideas, but require parliment pass laws, which is going to take time since we’re approaching an election. I don’t think it’s appropriate to wait months before even starting the debate in parliment about what we should do.

There’s also no guarantee any of those ideas would even pass into law. I doubt many politicians are keen on tearing up patent and copyright protection so Canadian companies can rip off American innovations.