The second class is the post-Castro refuges. Most of them are impoverished and few have political connections; they have very little power, and may be anti-Castro, pro-Castro, or ambivalent. (Some of the refugees were prisoners when Castro came to power, freed by Castro under the condition that they leave the country.)
I seem to recall hearing that Castro "opened his jails" on Florida. A rather bizarre thing to do, but makes sense in a certain context. What, you're accepting any refugees from Cuba? Here, we don't want these, take them!" Cuba wins big, US gets a political win with a social loss. Castro was probably greatly entertained by the whole affair.
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