And where do you suppose those Russians want to go? Certainly not to Venezuela. They all want to come here.
Reduced freedoms and economic downturn is real in Russia over last few years but nobody goes anywhere in mass numbers. To bring things into perspective 16% of Americans including 40% women under 30 want to permanently leave US for another country. In practice they aren’t leaving. Emigration is too much a headache for any somehow established person. It is mostly easy for marginals who have no property or marketable skills and these are a minority in most societies.