The fact that so many voted for him is damning for the concept of democracy.
Yes, that is true for some democracies. Do you know why that happened? Do you know why it happened to Germany's democracy when the Nazis took over? Do you know why it happened to other democracies?
There are variations from one to another but the same basic reason is true for all of them. The country's people were fed up with not getting a piece of the pie. In Germany, there was very little pie to go around and that was for their specifc reason. Do you know why Americans resorted to Trump.
It's no more obvious to Canadians that he was a sick psychopath than it was obvious to Americans.