Canadian here, I think copyright law fundamentally needs to go.
At the same time, you underestimate how bat-shit it would be to violate the Berne convention and the TRIPs agreement, even just directed at the U.S.
The only international consensus country which is not party to one of those is... Eritea? Even Russia and China are signatories who "officially" pay lip service to copyright law (even if they don't enforce other countries' IP in practice)
The U.S. is already talking about invading Canada, becoming the pirate bay for all U.S. IP would almost certainly be the push needed for the U.S. to make good on those threats.