Very well, let us follow your logic here -
1. Swedes learn english.
2. Therefore, US nationals should never hear spanish.
... uh-huh ... well if it works for you, my fellow americano, i'm happy for ya .... not meaning to complicate your thought process or anything, but dutch learn english too, and i have an indonesian dutch friend who speaks a fair bit of spanish and doesn't mind it around her at all, feeds us riijstaffel [sp?] even from time to time .... so, i guess the point may be, that it takes all kinds