Yes, I agree the embargo hurt innocent Cubans, but what's the alternative? Castro didn't leave us a lot of choice. Yes, America wants it's enemies, real or perceived. That's how the military machine stays in motion. It is very sad. War is business.
He went far beyond that. Look up the firing squads. He made it clear immediately that he had no intentions of giving up power, or holding elections. Not only did he kill his opposition, but he had many revolution supporters shot as well, because he thought they held too much power. He ripped children from the arms of their parents at will. He stole property and wealth on a whim. He was your average megalomaniac dictator, nothing better.
My point is that the mere passing of time should not lesson the actions of a tyrant. Let's just hope that Cubans can have a better future starting now.