Migration from poor countries to wealthier countries has always been a thing. Communist revolutions tend to happen in the poorest countries so you are mistakin

Migration from poor countries to wealthier countries has always been a thing. Communist revolutions tend to happen in the poorest countries so you are mistaking cause and effect. The countries that communism took hold on have been poor to begin with. Yes, communism is not magic and can not make you the richest country on earth overnight but neither can capitalism.