When Reagan and his policies brought the Soviet Union down, it was also the beginning of the end for Cuba.
Now the only thing holding up Russia economically is their natural resources and minerals.
Take that away and they have nothing at all to sustain them.
China is learning that lesson.
I remember Cuba begged the ChiComs to fill the void left by the Soviets, and the ChiComs basically said, “Thanks, but no thanks.”