Not everything he did that was dislikeable had to be done to one country in particular. For Canada, it would probably be (on top of the other stuff already listed): softwood lumber disputes, dairy farmer agression, aluminum and steel tariffs, shite handling of covid forcing us to keep the border closed... for Mexico, itd be the "rapist and thieves talk" building and paying for[!?!] the wall, strong arming NAFTA renegotiations, UK would have their own, Germany's chancellor has a PhD and Trump treats her like he treats his current wife. I'm sure I could go on.
The leader of the US is the most influential person in the world. Getting to that point while being a lying crass narcissist who says whatever comes to his mind, refusing all repercussions and questioning, and isolating himself by surrounding himself by sycophants trying to hide is his wake to gain prominence is sad and sends a shitty message to the next generation.