Communism hasn't worked in Cuba, hence all the people coming to Florida on rafts. When Castro took power, he nationalized all tobacco farms (meaning he took the land from the rightful owners, and deemed it property of the Cuban government, because thats how communism works, the government owns EVERYTHING). In turn, the tobacco farmers and Cigar makers left Cuba, and went to the Dominican Republic, Mexico, El Salvador, Nicaragua, etc...and now all the best Cigars actually come from those countries. Regardless of whether or not the US allowed Cuba to export Cigars to us, the cigar industry in Cuba would have still all but died, because all the major players left and started all over in countries where they were free to run their business. Which is what happens when you take away the incentive for people to do business, they just take their business elsewhere.
See this is where you are wrong. The government, under true Communism, is not supposed to own everything. The people are supposed to get their share ofeverything. What you and I have seen take place in the world under the guise of Communism has really been a few selfish dictators who only want to do good forthemselves and not the people.
Logic like "everyone would just be lazy" and "no one would do as much as they could because they wouldn't have to" is exactly why Marxsaid that people in a Capitalist society would never be able to understand Communism because the ideas of Capitalism are basically a part of them and only whenthe "Revolution" happened and things actually changed would they truly see what would happen.