Sunshine31- I could not agree with you more. For example, in college, I had a professor who specialized in Marxist ideology that taught Cuban history.
His account of the Cuban governments polices talked how the Cuban people were better served by eliminating most of their debts which the government would subsidize and offer soft currency that would replace the hard currency of the US dollar.
This limited the purchasing opportunities for the Cuban people because those retail stores and hotels were now served to tourist who had the hard currency needed to buy goods and services in these locations.
The extreme poverty that the Castro government caused was never revealed. This caused a significant flaw in his delivery of information because the people that did not know the other side of the story might assume that he was right when in reality there was a lot of negative information that he left out.
Political scientists have always been biased and always will. That is why people often say not to discuss politics in mixed company because there are always two points of view to every side and your life experiences shape your viewpoint.