Earlier quoted context omitted.
Capitalism is so ingrained now, nobody can even imagine that alternative system could exist. In the minds of most, communism is a synonym of authoritarianism. Communist governments tended to be authoritarian, but it's not clear to me if it's a natural consequence of communism. It's more likely that authoritarianism is a consequence of violent revolutions. Is it possible to combine communism with democracy?
I think it's more that authoritarianism is the natural state of human nature, and capitalist systems tend to be less authoritarian because they setup multiple competing authorities and provide a mechanism for the entry of new ones, and in the chaos that results ordinary people have space for liberty by switching allegiances between titans of industry. "Ambition must be made to counteract ambition" - James Madison, Fe…
That's a classic observation. It may no longer still be true. Scaling works better now that we have enough computer power. Amazon doesn't have a problem with coordination. Nor does WalMart. Alibaba and Tencent don't seem to. All those companies are above the quarter-trillion dollar level. They approach the scale of the USSR's entire consumer goods economy.
There's no longer a limit on the size of a monopoly. It used to be that big companies had trouble getting out of their own way. The successful giant companies now seem to be past that problem. In a capitalist world, this leads to one big monopoly in each category.