Hmmm ... okay.
Well, generally speaking, we can cross-apply those three motivational groupings to European nationalities as well.
Americans are
Most Similar to the
Swiss ... on a larger than interpersonal scale this is seen reflected in the unique relationship between those nations and the neutral-nation history of the United States up until the last 90 years. Nowadays, however, the idea of comparing the U.S. and Switzerland seems odd, at best, but in interpersonal action still bears relevance. On a legislative level we even see these personal notions play out on larger scales. Both nations have
roughly similar attitudes toward firearms, health care and political decentralization.
Mexicans are
Most Similar to
the Irish. Both nations have a history of oppression by larger European powers (Mexico by Spain and France; Ireland but the UK) that has shaped personal identity and the role of the individual. It's not surprising that ethnically Irish people play prominent role in the history of many Latin American nations (see: Bernardo O'Higgins / Chile).
Canadians are
Most Similar to
Britons, not surprisingly.