Russia's total population is 1/3 that of USA. It's literally comparable to that of Japan on that tiny ass island. It was stagnating even before the war in Ukraine. Population is a huge factor for labour force, larger talent pool, and GDP. Moral of the story:
Russia needs forced breeding camps

Reading a bit more into it, it seems that Environmental Engineering may be needed to fertilize land because Russia is a harsh place, but I bet even with that they won't breed much imo

Euler was Russian

Nietzsche was a nihilist

You Nietzsche get some bitches

Just ban birth control. Problem solves itself.