Jesus, your lack of critical thinking is astounding.
First, the basic premise of your question is flawed. Your question can't be answered because no country has ever fully gone Marxist. Many countries have used aspects of it on their way to communism, but many parts of it weren't implemented in each of those countries.
Again, the concept of Marxism isn't evil. It is the same principle as teamwork. Is the concept of a starting five in college basketball evil if they all play a different role, they all contribute (some more than others), but they all get the same reward? The concept isn't what is evil - many of the leaders end up putting their greed and power hunger ahead of Marxism which is where it evolves into being damaging.
Cuba isn't "inherently evil." Even with enormous economic sanctions against it by the world's biggest economic power, Cuba still is a happiness index ahead of the U.S., has the world's highest literacy rate (I believe, without looking it up), has free education, has the best medical ratio (doctors/patients) in the world, has phenomenal income equality, has a higher life expectancy than the U.S., etc.
Look what Russia was able to accomplish under Stalin. Do you realize how bad of a situation Russia was in before he took over? Was Stalin evil? Yes. Were the huge successes he gave to Russia based on those principles evil? Not even close.
Vietnam? Many ties to Marxism and/or communism. It isn't evil.
Moronic. You're saying all social welfare programs are "inherently evil." Food stamps? Inherently evil. Homeless shelters for women? Inherently evil. Youth homes, both private and state operated? Inherently evil. Federal student loans at a lower than market rate? Inherently evil.
Again, your lack of critical thinking skills is astounding.
I used one example that had many roots of systemic racism in my response, and you ran away from the thread. You refused to respond to the very thorough example presented of systemic racism. Here, go back and explain how it's not:
https://marshall.forums.rivals.com/threads/nba-approved-social-justice-slogans.47956/page-3
In all seriousness, without shit-talking, for you to say systemic racism is a myth is some alt-right shit. Normal Republicans don't even deny it. You either have no idea what systemic racism actually is or you are in the same category as the poorly educated hillbillies who get interviewed outside of Humpty rallies.