Although the Italian descendants of Argentina accounted for more than half, they all moved in later. When they got there, the Spanish had ruled for a long time and Spanish had become the national language. Moreover, as a whole, the Spanish entered the ruling class aggressively, while the Italians infiltrated into a Spanish-speaking circle and entered it bit by bit. Of course, when in Rome, do as the Romans do, and speak Spanish. Only when they go in can they speak Spanish.