50 years of the Cuba embargo

I've repeated myself about the Cuba embargo, probably excessively. But I cannot give up the opportunity to note its 50th--yes, fiftieth, as in big five-oh--anniversary.* I won't belabor any points, but will simply note what it has accomplished. In no particular order:

1. Giving Fidel and Raul Castro an excuse for their own economic failings
2. Isolating the United States in the world
3. Isolating the United States in Latin America
4. Denying economic opportunities to U.S. exporters
5. Denying Cubans the opportunity to have contact with the United States
6. Accentuating the influence of a micro-constituency in Florida

Ironies abound here, but the worst (or best, depending on how you view it) is that the policy was explicitly intended to enact regime change, but instead the Castro regime is the longest lived in the history of Latin American dictatorships.

I want, and I mean really want, to read an argument about how the embargo has advanced U.S. policy goals, human rights, or democracy. I've never been able to find such an animal.

*in fact, some economic restrictions were already in place under the Eisenhower Administration.