Ironically this is a Marxist argument, more or less.

But it lacks the historical dimension. Capitalism is a historical and technological phenomenon. One of the replies talks about it emerging in the Late Middle Ages. Of course it existed previously, in the form of a landed aristocracy, but the potential for concentration of capital didn't exist.

With the industrial revolution concentration of capital created the order we live under today. To describe it as natural is an unhappy choice of words. It is certainly engaged in the large-scale subjugation and destruction of nature.

Concentrated capital turns the machine up: it exponentially increases inputs and outputs, ramps up the engine, increases production, consumption, everything. It is a system that may be completely unsustainable.

You deal with the benefits of the system: good ideas, smooth returns, sophisticated investors. I don't see any appreciation of the costs: increasing inequality, environmental damage, immiseration of people in developing countries.

There may never be a permanent revolution against capitalism: it will simply be impossible to sustain.