Getting cheeky with the emotes so you want me to explain point by point how idiotic your post was?
1) "the soviet union was communist." - Did Stalin live in a one room apartment in a seized mansion? What type of cars did the top brass drive? (Hint: google GAZ Volga) The Soviets used communism as a weapon, not a real ideology.
2) "China is communist." - Ask any economist how they would describe China's economy. Not a single one will say communist. Do you believe the rest of the CCP's lies or do you take them with a healthy dose of salt like the rest of world with functioning brains? Did covid come from the wild like they say?
3) "NK/Cuba/Venezuela/Angola (and a host of other African/Asian/Central and South American States...are under or have suffered through Marxist regimes. It's *always* bad." - This isn't a serious list. The only one on there that even vaguely qualifies is Cuba, and they've been able to be remarkably successful given the brutal and unethical American embargo. North Korea barely even uses the trappings of Marxism, Juche and Kim Il-sung's cult of personality were homegrown.
4) "an all powerful state is a primary tenet of Marxism. In real life anytime a government is communist, oppression/control/subjugation is the norm. It's by design. It's a feature, not a bug." - You obviously haven't read much Marx but what you're referring to is the work of Lenin, not Marx. Lenin was a brilliant and prolific writer, but he was too focused on what he felt was the question of his day, how to implement Marx's observations in his Soviet revolution. Most of his work is practical in nature rather than academic and as such is extremely limited in scope and viability.
5) "communism and fascism are siblings, not opposites." - Fascism was intentionally developed as an opponent and alternative to Marxism(socialism/communism). It was specifically designed and intended by its creators as an opposite. This can be seen in every phase of the ideology. They came for the communists/socialists first and blamed the Reichstag fire on them. Nationalism was paramount over international cooperation. Ethnicity and race were exalted instead of dismissed. Trade unions were banned. Corporations and business leaders were praised. They intentionally did the opposite of every Marxist ideological fixture.