>they don't even have the privilege of dealing with the problems of massive immigration because no one wants to move there
"11,640,559 of international immigrants live in Russian Federation, which represents 8% of Russian Federation's population"[0]
I'd recommend to critically examine your sources of information about Russia.
[0] https://seeecadata.iom.int/msite/seeecadata/country/russian-...
Is that including the hundreds of thousands of kids that Putin kidnapped? They may be immigrants, but it's hardly fair to say that they wanted to move to Russia.
Those are mainly people from ex-Soviet countries, who come to Russia for better job opportunities because almost every ex-Soviet country is poorer than Russia.
I don't think that massive immigration from ex-Soviet countries is the win you think it is. Those are still the same gang of nations still interconnected since the early Middle Ages.