Is ridiculing and despising nations considered arrogance?

Arrogance is despising people and rejecting the truth. Disparaging a Muslim state and its people is considered blameworthy arrogance. Allah created people into nations and tribes so that they may know one another, and the most honorable of them in His sight is the most righteous. Boasting about nationalities, showing fanaticism towards them, and despising people because of their races and countries are acts of pre-Islamic ignorance (Jahiliyyah) that Islam abolished. For a Muslim is the brother of a Muslim, and the believers are like one body.