Every non-democratic form will be bought even faster, if it's not operated directly by the "buyers" in the first place.

Though I doubt that "in the absence of government intervention, wealth is more likely to tend toward the center". There are dozens of ways for the rich to get richer and fuck the poor/center over without government intervention.

As for anarchy, yes, you could have more or worse violent action, but the type you cite is directly how the current system works. In the USA, the US and its states have the greatest military strength and therefore set the terms. They also engage in military action on behalf of corporations like United Fruit, Coca-Cola, Exon, etc. The argument that "in the absence of a government the warlords would take over" ignores that the warlords are already in power. Further, I at no point advocated for anarchy. I merely stated that in the absence of government intervention, wealthy is more likely to tend toward the center. In the USA, the wealth gap has widened as government intervention in the market has increased and that is the basis of evidence for my argument. Today, the richest and poorest are further apart that any prior time in US history, and law/regulation is and has been in continuous expansion not retraction.

If anything democracy has only shown that it isn't a magic bullet for corruption. Part of the goal is that oversight by the voting public will eventually weed out the corrupt, that works somewhat and should certainly be better than no oversight from other forms of government.

I'd argue that I've never truly lived in a democracy, but I hope to one day. It's a system I would fight for if there were actually a semblance of a movement willing to stand up and say enough is enough. So far though I've been a bit sad, or maybe just disappointed, to see that the vast majority of our people don't seem interested in democracy, liberty, or individual freedoms.

I'm not sure what alternative you envision.