I don’t see that working out at all well for the US. I don’t think there’s a lot of sympathy for the US against Cuba internationally, and even if invading Cuba would get lots of support internally, it would kind of be like a dog catching a car. Now that you have it, what are you going to do with it.
Politically, the best thing America can do is leave them alone (at least as much as they do right now) until Cuba decides to change their stance, while restricting their access to weapons that could be a threat to America.