I feel sorry for the youth of Russia, they're going to face a terrible economic time going forwards (next 5 years minimum) for a boomer USSR fantasy...
The young adults are the future of any nation, if you're opposed to immigration but hate a regime just think about letting their 18-30 year olds come live in your country and watch the ex nation crumble, chances are they think exactly like you anyways. Greece is currently experiencing this exit.
Main land Europe needs a population booster anyways and I'm glad the UK is handing out visa even if it's slow