to Throbert and Kidkboom
The situation in the Baltic States is not equal to the situation when newly come immigrants demand their own language being promoted to the status of official state language. For the 50 years there were several official languages and one of them was Russian but due to nationalistic ideas it was dismantled and people who speak only Russian and were born and lived there for 50 years have lost rights (became non-citizens) from this day ever after.

Imagine a sci-fi case when English is dismantled in US and only those who speak Spanish are the citizens and allowed to vote. Would it be fair to the US people who can speak only English if they became non-citizens without any rights. What about English speaking people aged 50-60. The ability to learn a new language is not easy for them.