Why keep that embargo in place? We trade with China. We trade with Vietnam. Why not with Cuba? It should be obvious by now that the embargo is not going to lead to regime change.
To the contrary, if relations are normalized, a lot of Cubans will start visiting the U.S. They will see how things are here. They will visit their relations in Miami, who will fill their ears with the praises of democracy and capitalism. And when they go home, they'll start asking uncomfortable questions, like, why is Cuba so poor? Why are we still driving cars the Americans made in the 1950s? Why does an island the size of Florida, with plenty of good farmland, and abundant natural resources, and an entirely literate population (that's one thing Communists have always been good at), have to be so poor?
To the contrary, if relations are normalized, a lot of Cubans will start visiting the U.S. They will see how things are here. They will visit their relations in Miami, who will fill their ears with the praises of democracy and capitalism. And when they go home, they'll start asking uncomfortable questions, like, why is Cuba so poor? Why are we still driving cars the Americans made in the 1950s? Why does an island the size of Florida, with plenty of good farmland, and abundant natural resources, and an entirely literate population (that's one thing Communists have always been good at), have to be so poor?