Their cigar industry will not likely recover from communism any time soon, either.
Weren’t Cuban tobacco seeds transplanted to climates & soils similar to Cuba’s decades ago? And aren’t transplant cigar products indistinguishable from those still made in Cuba?
As for importing what used to be exported, Cuba had become a net exporter of eggs prior to Castro taking over. That quickly changed and eggs became a black market commodity in the Cuban workers’ paradise.
FWIW I wanted to learn more about Cuban cuisine after my wife visited Little Havana in Miami and raved about the food. I googled for the perfect arroz con pollo, and found that most Cuban recipes contained caveats about preparing the dish “only if this ingredient is available”. Spoke volumes.