Justin Trudeau, like his father was, is "post-nationalist".

Which means that he honestly believes that his mandate as PM of Canada commits him to look out for the interests of citizens of other nations  to almost the same degree, and arguably to a greater degree in some instances, than the interests of Canadians.

None of this 'looking out for Number 1", flag waving, jingoism nonsense for Trudeau. .

Which would be just fine, if every other nation took the same approach, which absolutely none of them do.