You should ask your parents what exactly they did to deserve the public revolutionary trials. As them how many people they tortured or killed, or how many were killed because of their denouncing to a corrupt military dictatorship drunk on the blood of countless people.
And don't be a fool, I visit Cuba regularly and have several friends over there, they even got me to "la cabaña", the place where the trials and executions took place. I even got the list of executions, and even while I disagree in principle to the summary trials, the numbers were quite lower than I expected based in the hype from the Miami crowd.
As for a joke, supporting 50 years of embargo against your won people with the explicit goal to create hardship and unrest is not even funny.
You've been to "La Cabaña"? Big deal. So have I. I went there with my cousins. Then even got me in at Cuban prices. LOL They told me the truth about the place. In hushed voices. Why? Because if someone overhead, he'd probably be in trouble. The "Cañonazo" was pretty interesting to watch.
I'm not going to argue with you, because unless you're of Cuban descent then you just really won't understand. You probably never grew up hearing about how great things were before Castro. You didn't grow up hearing about the stories and romanticism of pre-Castro Cuba.
Ask your friends what would happen if they stood out in the open and cursed Castro. They're probably wouldn't even think about it for fear of what could happen.