Just to make it clear, I think the 10 planks/10 point action plan of communism from the actual manifesto is simply WRONG and would never have achieved the communist ideal (and nowadays it is also outdated). An authoritarian nightmare is the direct result of that plan, points 1, 3, 4, 8 and 9 ensure that. Even more damning and depressing is that many communist regimes did not actually implement point 10 by actually having mandatory child labour even if education was free.
But also note that most capitalist countries actually implement to some degree point 5 (having a national central bank) and many to various degrees implement point 10 (free education, no child labour) and several implement 6 (state controlled transportation and communication). And this was for the better.
That doesn't change that none of the well known historical regimes under the communist brand ever came close to the communist ideals. The betrayal of their original ideals was decried by communists themselves very early on.
My argument is actually that there are good reasons that humanity as it was 100 years ago and as it is now is incapable of achieving the communist ideal and therefore we need better philosophical theory on how to get closer to that ideal. I think the idea that revolution can bring about the communist ideal was naive.
There are comments here about smaller scale communist social systems claimed to have worked I did not know about and about which I will read.