If so, then which language(s) in addition to English do we learn?
Americans speak English. Naturalized American citizens should have minimum proficiency in English. Non-citizen residents are guests and Americans are hosts. It is not a host's responsibility to accomodate the guest.
I wish more people on more occasions would remind these demanding illegals of their status. Many of them think they're cats and can do as they damn well please ;-)
Bwahahaha!!
Consider that line stolen. whooooha!