Up until the mid 1800s in North America, Spanish people would send out seek and destroy teams to hunt down any "illegals". I put illegal sin quotes, because they actually were French and English nationals living in their own independent societies hundreds of miles away from any Spanish town.  They all say how much they love the USA when facing deportation. But I say almost all Spanish surnamed people living in Latin America are taught to hate the USA from birth and to see the English language as the language of their hated enemies.  Those people cannot bear to wave a USA flag, they won't dare buy a USA made car, they speakie English only as a last resort.  The English speakers have humiliated the Spanish speakers over the centuries.  You will never get production from a humiliated people.