The author makes a lot of general observations about inequality, over-production, austerity, and the chaotic economic booms/busts that are typical characteristics of a capitalist controlled economy. She, like many others, sees signs that we are headed for another economic bust which always hurts working people the most.
A fifth of all stock market wealth in the world has been wiped out. This may not immediately affect most workers. But the capitalists’ way of dealing with the loss of their speculative wealth is to immediately turn on workers who have less than $1,000 or $100 to their name.It is my observation that in Western societies the extreme accumulation of wealth is nowadays concentrated in the financial sector. This I believe is due to the inevitable upward drift of wealth under capitalism from the workers to owners of industry to financiers who over time inevitably become the "owners" of most capital. This is where we are today. Nearly everyone including many of the smaller corporations and entire nation states are in debt to people in the financial sector of the world economy.
Basic to capitalism is private ownership of social production which she touches on in this essay. However all the other characteristics she mentions, I believe, are effects of capitalism rather than basic causes. The other basic characteristic is the drive for profits by "owners".
And it doesn't take much wealth accumulation to also increase one's dominance over others. Power over others has become a paramount derivative feature of capitalism which, in turn, creates the class structure and a ruling class, and causes ruling classes to engage in policies which conflict with the interests of other social classes (class war) and the security interests of other nations (imperialism). With the extreme accumulation of wealth now in the hands of a very few people, the latter control entire governments, media, education, and all other sectors of societies.