From the US Department of "Totally Not Subterfuge, Word to Your Mother"
16 Planned US Operations to Oust Castro from Cuban Power. via The Smoking Gun
Castro, granted, has been a bit of a military nut - but at least not a totally sadistic torture-mad dictator Saddam was. Cuba has been prospering all right, depsite repeated US attempts to destroy it as an affront to capitalist supremecy. Cuba committed "a great theft" to create a communist empire, and in doing so pissed off (and persecuted) quite a bunch of people - which is "not a cool thing to do". But no country these days has an exactly spick and span human rights record.
The only thing I'd really hate to see is for a Chinese model of capitalism to be adopted, which is a predicted outcome of a Fidel-less Cuba. That would be an even more "not cool thing to do".
(What's with the inverted commas, please just don't ask)