2nd generation Cuban American here. My family has a massive anti-Cuban government sentiment and pretty much all the older Cuban people in Miami feel the same. I don't blame them considering most had their homes and belongings taken from them by the current Cuban government.

As someone who is a little more removed from the actual suffering Castro caused I believe that if the embargo ended and the US and Cuba began trading again that the regime would lose a lot of strength just from the exchange of culture. Especially since the US and Cuba are such close neighbors.

What could possibly happen though is that the regime clamps down completely on trade and all the money being made goes straight to the higher ups in the government. Which is why most Cubans that moved away don't want the embargo to end.