bavius,

It's true that doctrinaire free-market capitalism coupled with multilateral free trade & the robotics, communications & IT revolutions (while fostering efficient, effective & growing economies) does foster the widening of wealth & income disparities within countries.

It follows that through our public education, domestic taxation and income redistribution public policies, Canada needs to limit & reverse domestic widening of these disparities.

On the other hand, erecting significant trade barriers only retards domestic economic development & itself would be counterproductive to narrowing domestic disparities.

Surely, the current spectacle within the US & in US/Canada trade relations draws into deep question your assertion that "Trump is the cure. Trump is the Canadian workers best friend." on the issue of international trade.