Put another way, capitalism, like communism, is one of those pure ideologies that has never really been given a fair shake. In fact, human nature rules out the possibility of a fair trial for any pure ideology. We are political creatures, not ideological ones. If you really are beyond your high-school years, as your account age suggests, this should be obvious.

Unsurprisingly, the most successful systems are those that have proven to be better at meeting human nature on its own terms. Hence the triumph of capitalism as it is practiced today, which for all its flaws has the advantage that you don't have threaten people at gunpoint to force them to engage in it.