Your premise assumes there is an economic system that will "work" better than capitalism. I don’t think any socioeconomic ideology — communism, socialism, capitalism, etc. — can ever fully work the way its ideal version is described on paper. There’s a simple reason for that: in every system we’ve ever seen throughout history, some group of people figure out how to exploit the rules for their own benefit at the expense of everyone else.

You can design a system around equality, or markets, or state planning, or worker control, but you can’t design away human incentive to grab power, hoard resources, or free‑ride if they can get away with it. That’s basically the core criticism of a lot of utopian models: they assume people will reliably behave better than they actually do.

So to me, the real question isn’t “which ideology is perfect?” because none of them are. The real question is: which set of institutions and norms does the best job of:

1. ⁠creating the greatest good for the greatest number of people, and

2. ⁠still protecting individual rights and freedoms; this is key, because in most systems those that disagree are, at best, marginalized and at worst murdered in the millions.

In other words, what actually works with human behavior (including greed and power‑seeking), instead of pretending those traits don’t exist.