This was actually a good thing. Che Guevara was a psychopathic murderer and war criminal.
Looking through this list, it is interesting how it minimizes the atrocities of communists.
Lest there be an accusation of “both sides”, you really have to consider the contexts in which things occurred. For example during WWII, you could easily do a huge article about Allied atrocities in fighting the Nazis and how civilian and industrial areas were targeted and often included as collateral damage during night time bombing. But it is also true that the bombing of cities and destruction of German industrial capacity contributed to the collapse of the Nazis.
The truth is that Communists have killed more people and been responsible for more human misery than any corresponding movement or ideology in the 20th century. In addition, for the most part, the countries that joined the US Bloc ended up doing well for their citizens in the long term, even when they started out as authoritarian (see for example South Korea and Singapore) while countries that embraced Communism screwed over their people (See East Germany and North Korea).