One problem with that, Cubans are "held hostage" by their government. If they could just fill out the appropriate paperwork and hop on a plane, I'm pretty sure they would rather do that than pile onto shipping crates and such, and float out into the ocean hoping to wash ashore before they die.
Well I guess we should throw open the doors for the Chinese and North Koreans and anyone else that lives under a dictator. Sorry, aint buying it. We shouldnt have two sets of rules.