The core fact is real — Canadian travel to the US has declined significantly (35% drop in car travel over 2 years, confirmed by Travel and Tour World). But Forbes frames this as an intentional 'boycott' when the evidence shows travel shifts driven by immigration policy uncertainty, visa scrutiny increases (NPR reports eroding trust in US citizenship approval), and cross-border friction. The post cherry-picks the decline while omitting that Canadian travelers are shifting to other destinations rather than boycotting per se — this is a travel pattern change, not an organized rejection movement. 'Most successful boycott in memory' is hyperbolic framing unsupported by the data.