That just means you don't know how to. I also bought a russian BF3 and now I'm running fully English and getting updates perfectly, even bought some DLC's that were all English.
And I also did the same for all of the Call of Duty games.
@Tom3kb, Yes I am aware of that, but as I said earlier, one thing is when you don't give the player a choise in a menu to switch languages, another thing is when you completely disable it by making it impossible even with any patches or fixes or language files.