Authorities that erect major obstacles to migration - or place severe restrictions on migrants' work opportunities - inflict needless economic self-harm, as they impose barriers to having their labor needs met in an orderly, legal fashion. Worse still, they unintentionally encourage illegal migration.
Iranian filmmakers are not passive. They fight whenever they can, as creative expression means a lot to them. The restrictions and censorship in Iran are a bit like the British weather: one day it's sunny, the next day it's raining. You just have to hope you walk out into the sunshine.