Venezuela-Cuba is to be repurposed as West-Socialist-Communist Paradise.
Every single western left-winger is deported there.
It is supervised by both internal and external expert committees consisting of cutting edge Marxist academics that it will not ever even by accident engage in non-Marxist policies so they can't claim it wasn't real communism if it fails. Furthermore, this state of things is permanent. Even if things go wrong, there will be no reforms. That way they can't claim it was good but revisionists ruined it.
All the communication to rest of the world is cut off so they can't claim it was CIA sabotage and bourgeoise propaganda. They are not allowed to trade with capitalist countries so they can't claim they were subject to imperialist economic dictating. We give them their own intranet so they can't claim Russian trolls or hostile propaganda interfering with their system. We put Chomsky as their initial leader, he has been longest telling everyone how things should be ran, so let's see him run things for once, give him full reign over 200 million people.
This complete liberation of everyone on terms they themself have propagated as true freedom is, in fact, the greatest possible display of selfless human empathy. By pre-emptively enacting safeguards to prevent their often self-stated reasons why their system always failed before, we are assisting them to find full happiness.
As for emigration from there, returning to oppression is not to be permitted as a basic humane principle. Any left-winger popping up outside West-Socialist-Communist Paradise is promptly sent there, no questions asked, no objections allowed. It is after all a humanitarian duty to help people complaining of oppression and exploitation to live in place where no such thing is allowed by their own definition.
This way, everyone is happy forever.