For example, one characteristic of a society divided into aristocrats and serfs (and lacking anything like the 'American middle class' of the 1960s) is a segregated educational system, with fundamentally different approaches for the posh vs. the proles. The various attacks on public schooling (like the effort to remove higher mathematics from public schools in California) and the elimination of state subsidies for higher education are certainly a step in that direction.
Another feature of this article is the lumping of all things 'capitalist' together, ignoring the very real distinction between commericial and investment capitalism, colloquially described as "Main Street" vs "Wall Street". Notably the latter is characterized by extreme concentration of wealth and power in the hands of a 'central committee' of Wall Street financiers; the former version of capitalism certainly has a much more distributed character in terms of wealth, power, land ownership etc.
Finally, this really is a 20th century argument that misses a fundamental characteristic of the 21st century: resource limitations. Regional water scarcity due to ongoing fossil-fueled global warming is a reality in many parts of the world, and this is more fundamental than ideological wrangling about societal structures. The resulting impacts on food production are physical and ecological in nature, not ideological - although the consequences could lead to things like the French Revolution, or the rise of authoritarian power to ensure food distribution (basically, that's China writ large).
I think the real split is going to be more about authoritarianism vs. libertarianism, and the libertarian track record on avoiding things like mass famine and consequent societal destabilization is perhaps not the best.