Buck Melton's Economic-Political Ideologies Spectrum (below) illustrates how, in the realm of public policy, we can organize economic-political ideologies to clarify the relevant truth about human nature to guide us toward serving life with minimum work/cost/harm, to maximize universal wellbeing.
The top of the chart represents anarchism, defined here as serving life with minimum work/cost/harm, to maximize universal wellbeing. The bottom of the chart represents fascism, defined here as serving life with maximum work/cost/harm. The far left and right points on the chart represent marxism and liberalism respectively, both waging intolerable levels of work/cost/harm. Given anarchism asserts that we thrive most by serving life with minimum work/cost/harm, it is clear that both marxism and liberalism are insufficient toward achieving the anarchian goal to maximize universal wellbeing.
Here we define authoritarianism as the lack of anarchism. Fascism, marxism, and liberalism, and their blends, are all authoritarian.
Buck Melton's Individualism versus Collectivism table helps to clarify how the perpetual contest between marxism and liberalism (left/right) distracts us from the most relevant question: Anarchism versus authoritarianism (top/bottom). Associating collectivism with marxism and individualism with liberalism, this table illustrates how marxism/liberalism attempt to serve life with intolerable amounts of avoidable work/cost/harm. We see abundant evidence of accelerating growth of this harm in the early decades of the 21st century as authoritarianism has displaced anarchism over the previous decades, e.g. the dismantling of the New Deal in the USA.