Well, USAmerican govt’s propaganda(aimed to keep their people misdirected and supportive of invasions like that in Iraq) targets Stalin and other figures who had either looked at economic systems beyond capitalism or opposed USAmerican imperialism(directed by their ruling class), right?
Same for Marx, Lenin, Stalin, Mao, Fidel, Che and even Nelson Mandela.
https://time.com/5338569/nelson-mandela-terror-list/
The USSR and Cuba had aided anti-apartheid struggles in Africa.Video snippets of Mandela talking about it:
https://www.youtube.com/watch?v=Je5R5E8SOSw
https://www.youtube.com/watch?v=o7cZBg4c4W4Also, not saying that all those people were perfect, but the reason for the hate does not seem to be the imperfections, but them opposing or being threats to the interests of the USAmerican ruling class.