Fair enough, but Canada is still Canada and Canadians who pick a US President over Canada's interests can be treated with mistrust by other Canadians, especially if the President is considered hostile to Canada's interests.
Really I think think how trade talks will go, will determine how popular Canadians who support Trump will be. Most Canadians don't like a lot of his policies, but know internal US policies are not something they can change or affects them that much and some can see ways to profit off Trump's policies:
American tech workers are flocking to Canadian startups post-election - Business Insider
I actually don't think Trump has done much out of the ordinary towards Canada so far, sure a few curt words from Trump so far, but I think most Canadians just expect that from him so far, its not like PM is going to get into a war of words with Trump over that or his internal policies. LBJ once assaulted Lester Pearson, a few harsh words are nothing. Really if Clinton was President, we would have seen those lumber tariffs, lumber tariffs seem to appear every decade or so, regardless of the President.
Now if Trump starts a huge war and tries to get Canada involved or tries to damage the Canadian economy with massive tariffs, then the majority of Canadians will be unhappy and being a Trump supporter in Canada will be unpopular.