Why has it been difficult for canada to establish a single national identity

People identify more strongly with regional and ethnic groups than with the nation, leading to more culture over nationality.

Ithink it’s true as the answer.

Sequoia national park  /  inyo national forest, california, u.s. mount whitney is the tallest mountain in california, as well as the highest summit in the contiguous united states and thesierra nevada—with an elevation of 14,505 feet (4,421 m).