I think it is time to end special treatment for Cubans such that if they reach US dry land they can stay here. They are trying to escape Communism, which I admire, but everyone is trying to escape something, whether it is poverty, drug violence or who knows what. Regardless of motives, intentions, work ethic etc..., the USA must control its own borders and decide who to invite and who not to.
That said, I would not forcibly return anyone to Cuba. I would hold such persons in a refugee camp until somewhere was found to take them other than a vindictive dictatorship.