National identity gives the people which in their country​

It is the sense of "a nation as a cohesive whole, as represented by distinctive traditions, culture, and language." National identity may refer to the subjective feeling one shares with a group of people about a nation, regardless of one's legal citizenship status

ń, wǒ shuō yīngyǔ, dàn wǒ huì shuō qítā yǔyán, rú xībānyá yǔ fǎyǔ yìdàlì yǔ hé pǔtōnghuà, suǒyǐ bùyào pànduàn, dànshì

what events in mexico's history might explain why the country continues to have difficulty improving social justice and economic opportunities for all people?