China and the Soviet Union are the largest scale attempts to implement a cooperative system and they failed in spectacular and tragic ways. So you certainly need to consider why the new plan will be different and won’t meet the same fate.
For whatever it's worth, I'm not a communist or a Soviet apologist or what have you. I also just think it's incredibly silly that Westerners are so conditioned to jump at the hint of the Soviet's shadow when there's any suggestion that capitalism might not be the most effective economic system.
The common counterpoint to that is "capitalism isn't perfect, but it's the best we got!" And maybe I'm naive, but I can't help but think humans can do way better. Isn't capitalism supposed to be a bet on human ingenuity? Then why do we pretend that humans are inherently limited when it comes to creating a good society?