>responsible for much of the unnecessary suffering of the 20th and 21st (modern Cuba, North Korea and Venezuela)
Neither Cuba, North Korea nor Venezuela have adopted anarchist theory or praxis. At best, they have claimed to adopt regional variants of Marxism-Leninism and even toward that goal they have failed as is currently visible by their capitalist economies.
>I also think it is the culprit for the stagnation seen in the West.
How is social anarchism the culprit for the perceived "stagnation" in Western countries? And stagnation of what, exactly?
You can't really blame the man or his ideology, though. He didn't specify many of the things which were decided by those governments, and those governments to my knowledge all followed Marxism-Leninism anyway, which has a different revolutionary praxis. And as I said, they weren't even true to that.
You are right in saying that Marxism is anti-economic, but you are wrong in saying that it is bad because of this. Marxism is a critique of political economy which postured that capitalism is the highest form of development, or the most desirable.
Marx himself didn't propound an economic system, he specified what life should look like under a Communist system. As such, many varities have sprung up, from market Socialism to full economic planning (which contrary to what Mises would have you believe, is possible and has been worked upon by Cockshott et al.)
When I say anti-economic, I mean anti-economic-development, as in the ideas of Marxism being incongruent with the truths of social and market reality, and thus highly disruptive to an environment where society can organise itself to meet people's economic needs.
There is a wide consensus in the field of Economics that central economic planning is fundamentally flawed as a system of economic organisation. This flaw relates to the nature of knowledge and its distribution throughout society. In my opinion, Marxism's conceptual shortcomings are why it has been associated with so much misery over last century and a half.
A biblical verse is unusually apt in this case:
"Beware of false prophets, who come to you in sheep’s clothing, but inwardly they are ravenous wolves. You will know them by their fruits."
Neither Cuba, North Korea nor Venezuela have adopted anarchist theory or praxis. At best, they have claimed to adopt regional variants of Marxism-Leninism and even toward that goal they have failed as is currently visible by their capitalist economies.
>I also think it is the culprit for the stagnation seen in the West.
How is social anarchism the culprit for the perceived "stagnation" in Western countries? And stagnation of what, exactly?