Is this an academic paper? Telling a story the way the author sees it, causal relationships established as if they are obvious, no need to actually show they exist. This is indoctrination, not analysis.
Here is a list of the author's work. This is very consistent with "Confessions of an Economic Hitman" and numerous bodies of work that highlight the tactics used. This
essay (if not an academic article) was interesting for providing more context and subtext around the drivers for the movement. It's honestly a political and economic masterclass regardless of your ethical position. https://www.jasonhickel.org/#/academic-work/
The author is a contributor to Jacobin Magazine which according to Wikipedia "has been variously described as democratic socialist, socialist and Marxist" so it would seem you're spot on.
As far as a critique of the actual paper, it seems to be predicated on the idea that democracy and freedom are synonymous when in fact they're orthogonal concepts. You can have tyrannical democratic structures, in fact that's what the founding fathers sought to combat in the original system they laid out which was less democratic than it is now (e.g. only land owners, people who have skin in the game, can vote).
"When the people find that they can vote themselves money that will herald the end of the republic." – Benjamin Franklin
You cannot have freedom without democracy (unless of course you're part of the ruling class). When someone else rules over you, you aren't free.
Democracy does not guarantee freedom but it greatly increases the chances and distributes it more equally. Your chance of being "tyrannized" by the majority is less than 50%. A ruling class you aren't part of will tyrannize you.
See the difference between saying democracy is necessary for freedom and saying that democracy obviates freedom. Parent comment only made claim to the former.