""It's that we used to own Cuba""

Who is/are we?

Outside maffia and underworld interests, many of the owners of Cuban businesses (such as cigar and rum) were rich Cuban citizens. While many of these folks did immigrate to the USA, became citizend and now live in Miami- I believe, prior to 1959 many were Cuban citizens.Many of these folks are politically influential, in vote rich Florida.

Like in many Carribean areas, I suspect USA companies had significant investments in Cuba that were impacted by nationalization. But, nationilization of USA assets, especially natural resources, is not unique to Cuba. One related example is nationalization of oil fields in the Middle east. But, Cuba faced the greatest punishment.