It's complete bs. Answer this question if you're remotely a honest person.
Canada has been a longstanding trading partner and trades under the USMCA which Trump signed in his first term.
When he announced tariffs on them, Canada pleaded and offered to come to the table and renegotiate, even though they're currently under the agreement that Trump himself signed. But he didn't want to negotiate and implemented them.
So wtf are you talking about? By your logic, Trump should've paused the tariffs on Canada because Canada was begging and pleading to negotiate before the retaliations happened.