There hasn't been any evidence yet that central planning is effective in the long run. What do you think will work this time around?
Central planning and command economies work really well inside corporations, such as Apple or Google. They don't make internal decisions by hosting mini-markets and pitting their workers against each other, they have departments who study demographics and departments that study research and logistics and so on.
Tankies claiming the fall of communism is just around the corner are in the same bucket of "bad" as free market libertarians who adore corporations.
That's because they can fire anyone that works for the company who doesn't agree with the goals. Do you propose to jail or disappear people that disagree and work against the direction defined by the central plan?
Again though, I'm not here to talk about the failings of autocratic state planning advocated by tankies.
That said, while most people seem to barely know about his writings in Capital Volume 1, Volume 2 and 3, published by Engels after Marx death, went on to point out that while there was a struggle between the factory owning capitalists and their workers. There was also a struggle going on between production capitalists and finance capitalists. And that the ultimate culprit of capitalism was likely to be finance.
IIRC, Marx even noted that in the long run it would likely be better for production capital to ally themselves with the workers against finance. But that production capital was more likely to squeeze the workers as they themselves got squeezed by finance (with landlords and other rent seekers lumped into finance).
Managing static resources is easy.
Now, cooperatives are interesting. They mostly don't work, but when they work, they are great.