After the Cuban revolution, why hasn’t the United States done anything about it?

It’s because of the Bay of Pigs. I feel there are several main reasons. First, just a few years after the successful revolution in Cuba, the United States organized mercenaries to attack Cuba, including the Bay of Pigs. They were defeated by Cuba within 72 hours and suffered a shameful defeat; second, Cuba was too far away from the United States. It's close. It takes half an hour to get to Florida by plane, or it takes only two days to float there by boat. If Cuba is invaded, a large number of Cubans will probably go to the United States. In 1992, a large number of Cubans were incited by the United States. Cubans drifted away from Cuba to the United States (Florida). When Castro was angry, he did not impose restrictions on these rafts, which caused a lot of trouble to local order and security in the United States. In the end, the United States took the initiative to negotiate with Cuba and demanded that the two countries resume restoration. There are normal immigration exchanges, and there are a lot of Cuban expatriates in the United States. Many of them are against Lao Card, but these Cubans still love their country and do not want their country to be invaded; thirdly, the Caribbean near Cuba Countries such as Jamaica, the Bahamas, and Saint Lucia have a lot of U.S. investment. Their economic development relies heavily on the United States. If they attack Cuba, it will inevitably have an impact on these countries. In fact, it will not benefit the United States itself. Advantages: After so many years, the fourth-oldest country still has a high prestige in the world, and it has not taken the initiative to attack the United States with force. The United States has no name and is morally untenable. This is what I have learned from living in Cuba for more than three years.