I agree that other economic systems are problematic. Calling these systems "tools," though, comes close to whitewashing them. They're systems with emergent properties that depart, in practice, from the ideal theories, and we can learn from those tendencies.

I've written lots of articles on politics and economics. And I've had a long dialogue with a reader here who's an economist. He argued vociferously against my contention that economics is a pseudoscience, but he maintains that mainstream economists don't advocate for "free markets" anymore precisely because history has shown how actual markets tend to violate the utopian mathematical expectations of neoclassical economists.

Anyway, I don't think it would be so difficult to substantiate my criticisms not of capitalism as a neutral tool or theory, but of how that system tends to work in real-world settings.