Spanish will continue to grow in America. This shift in language is unprecedented in American history. Spanish has grown from 4% to 15% and will continue to grow in the foreseeable future eventually making America a bilingual country. Languages move, people move and America will be radically different than it is today.
I said, when referring to the native language in Ireland, that Irish speak "Gaelic" when the proper term would be "Irish Gaelic." I also used the Mexican flag to refer to all Spanish Americans, I did this because ~52% of all Hispanic Americans are Mexicans. A growing proportion of these Hispanic Americans are also coming from Central America. Chile, Argentina and Uruguay are relatively stable so when I'm referring to Latin America I am mostly referring to Central America plus the Caribbean, Columbia, Venezuela and Peru. Argentina's economy periodically explodes so maybe it's not that stable.