History tends to nullify revisionism whenever exposing the liberal lies about the character of their favorite occult personalities. The left wing tends to canonize the oppressors and rationalize the atrocities they subject mankind to always conveniently overlooking their faults, hypocrisies, and the truth whenever possible. In lieu of the recent death of Fidel Castro an apparent hero to those who would rather consider his image as a revolutionary rather than what he actually did to disrupt a socioeconomic system, tear apart a culture, and ruthlessly eviscerate all opposition in the process.
The dreamers
Yet, Democrats, the left, socialist worshipers, the US mainstream media, and the deluded mindset of world leaders will sentimentally look back at the Castro regime as though there was some redeeming value and some fond memory that Cubans who were victimized by Communism should have. These deceptive attempts at the left's wistful recollections of Fidel Castro fall by the wayside once the very reaction of those who escaped the island nation of Cuba before they were imprisoned or executed is joy once they found it that the former dictator had died! Truth will triumph over revisionism of the bloody path every time when it is not ignored or shrouded by lies.
Inconvenient truth
So here we have a tale of one of many exploits in Castro's Cuba that the left would prefer you didn't know about, that liberals would rather just got shoved under a rug, that being said, let's explore the kinder and gentler side of one of the icons of socialism as his best when world events were turning rice paddies into meat grinders thanks to the myth of reunification and the product of false flag operations under the Johnson administration (Gulf of Tonkin Incident) just another bungling Democrat White House.
Blood in the Mekong Valley
As the Vietnam war raged around 1968 with the North Vietcong, North Vietnamese regulars, and insurgents absorbing horrendous losses as the American military fought back like a blind bear in a meat locker a peculiar phenomenon had emerged. It seemed with the great loss of life inflicted upon Communist backed Ho Chi Min forces by US forces had resulted in a critical demand for blood and plasma in order to supply all of the underground tunnel make shift hospitals operated by the Vietcong.
Russia reaches out
The Soviet influence in its partnership with Mister Cigar smoking Castro had demanded help so Fidel drew upon the resources of his countrymen in order to assist in remedying the blood shortage inherent in the Vietnam conflict. In order to do this he tapped into the one of the few valuable reserves that he could in order to aid the Communist war machine and picked 156 political prisoners that were currently serving in one of many Cuban prisons.
The HR Department
Each prisoner, without their consent, were subjected to having almost their entire volume of blood being drained via needle from a main artery to the point of becoming nearly comatose. What a great way to tap into the available ranks of human supply since apparently it was being wasted on mere stagnation in prison. So, all 156 prisoners had now been converted into terminal blood donors.
Details details
Now, how did the fearless Fidel repay his prisoners for their great sacrifice in aiding their Communist brethren in far off Vietnam? Why, they were summarily dragged  to where they would be shot in the very familiar firing squads that had come to be so common place under Castro's liberating influence. Most of them were simply carried to a designated location where rifle fire finished off what the massive blood draw had not been able to achieve, a sort of reverse blood transfusion that would not be replaced only drained.
Dark conclusion
So ends the tale of one in many such untold sagas of suffering and atrocity at the hands of the most charismatic of humanitarian gestures as practiced by the great Fidel, a man of cigars, a leader of guerillas, and a student of Communism who marveled at the legacy of Joseph Stalin, and in doing so attempted as best as he could to replicate those wondrous purges, pogroms, and purifications so necessary in Marxist regimes. Yes, just another wet dream in the inscrutable delusion of the left submitted for your information from the blood stained pages of Cuban misery. Viva la Castro!