Given the article's title and poll give us a false binary (Trudeau or Trump), I'll suggest it actually tells us something different.
The people who indicate they support Trump are neither Liberal or Conservative, but Populist, and believe that the current structures and institutions do not reflect or support their aspirations or goals. They are the same people who voted for the United Conservative party in Alberta, the Doug Ford PCPO in Ontario and the CAQ in Quebec. They are the people who worked to ensure the PPC had a candidate nominated in every single one of Canada's 338 ridings for the 2019 election by September 2019 (remember, the established parties still needed to parachute candidates into ridings where there were no nominations). They are motivated by a multitude of different specific concerns (try finding commonality in the various platforms of the UCP, PCPO CAQ or PPC), but that is more of a reflection of the political tools available. The underlying issue isn't the specific policy plank, the the more general feeling that the system is failing them.
Internationally, this same though process has led to Brexit, the election of Nationalist governments in Poland, Hungary, Austria, Italy and Brazil, and the growth of political parties like Partij voor de Vrijheid in the Netherlands or AfD in Germany, or the Mouvement des gilets jaunes in France. Even in the United States, I'll argue that not only is Donald Trump the manifestation of the Populist movement, but so is Bernie Sanders - the message of the failure of the current system is the same, the difference is the proposed solution.
So if we understand "Trudeau or Trump" as actually being stand ins for "retain the Establishment" or "replace the Establishment", then the answer makes far more sense.