That's a horrible misattribution of the famines in the early USSR and PRC, where famine was common before collectivization and industrialized farming. It wasn't a misappropriation of food, but natural causes and a government ill-equipped to overcome the force of nature without industrialized farming. See why despite the early famines, life expectancy was consistently rising, unlike England where the introduction of industrialization caused a drop in life expectancy for a long time.
The "higher economic prosperity" in the global north is because of imperialism. African countries are no longer traditional colonies, but are largely imperialized by western countries. The global south does the majority of the labor and production, the global north does the majority of consumption. The fact that you don't even consider that this is true means you likely have never actually engaged with Marxist theory (which, to be fair, was already obvious, just moreso now).
The "wall" hit by the USSR was an increase in liberalization, recovery from 20 million dying due to World War II, and having to devote a ton of resources to millitary purposes to prevent the US from nuking them outright. It wasn't because of socialism inherently. Again, see the PRC, where there's no "wall" in sight despite the economy being increasingly socialized.
The unions and labor movements in the global north also depended on the USSR as an example of what happens if concessions aren't given. When the USSR fell, workers rights in the global north shrank massively and wealth disparity rose massively. And, again, they depend on imperialism! The socialist bloc produced for themselves, their positive acheivements didn't depend on imperialism, but their own labor. Not true at all for the global north.

Again, you're deeply unserious. You have no clue what you're talking about. If I heard from 3 family members about how Biden is an ultracommunist and Trump is going to save the world, that doesn't mean shit. What matters is looking at the facts, statistics, trends, and metrics.
Edit: lmao, of course you're a genocide denier that supports the fascist Zionists. No wonder you don't factor in imperialism, you think it and settler-colonialism are good things. You bat for the IOF for free and say they are doing a good job of minimizing their genocide.