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Of course, what we really need is the discourse to shift from "capitalism vs. communism", to recognise that both are extreme ideologies in their pure forms, and to start working out what a "best of both worlds" system looks like.
The problem is when greed/other human attributes gets involved it stops working. As with any of them, it's all about the people and how they implement it. I don't think capitalism sounds good at all on paper, but has worked for quite a while, mostly due to some degree of working standards and unions.
Remember most of these haven't been in use for longer than like 100 years. Before 1920 it was largely a mix of other religious/monarchy ideals.
I'm not sure we're on the same page, there's the PRC, Cuba, North Korea, Vietnam.... not to mention the Stalin of it all.
Much of that history is well beyond 1920.
People are inherently self-interested. I would argue that any proposal for an economic system or government needs to acknowledge this at the outset and be built based on that foundational belief.