It’s easy to be in a progressive country like Canada and praise the Soviet Union or Russia. I think deep down they know that they’d have a miserable life in Russia or China, so at best they make up reasons for why they can’t move, even though the power of the passports and wages in the countries most of them are from allows them to easily do that, which can’t be said about Russian or Chinese citizens trying to get a visa to even travel to one of the Western countries.