It's not a secret that they have a Marxist orientation. Most people aren't as mindlessly paranoid about Marx as you are, though.
Marxism, as an ideology, is as bad as fascism. It is not "paranoid" to realize that Marxism is dangerous and to oppose it.
The opposite of fascism isn't Marxism, it is communism. Fascism is not an economic theory, it is a theory based on racial socialism, maintaining racial purity to better society. Like white superiority, know-nothingism, the KKK, Trumpism, etc.
Marxism is an economic theory that is unrealistic because it requires individuals to almost completely suppress their individual ambitions to the needs of society as a whole. The opposite of Marxism is Austrian/Libertarian economics, a completely unrealistic economic theory because it requires the society to almost completely suppress the needs of society as whole to the many various individuals' ambitions. History has taught us repeatedly that there are legitimate needs both for the society as a whole and for individual freedoms and that they have to balanced against one another.
Austrian/Libertarian economic theory is arguably a more unrealistic theory than Marxism is because it is anarchy, which has a bad name for a very good reason. That is why the neoliberals had to change the name of the theory to the "Libertarian" one, not that they wanted anarchy, but only the Austrian/Libertarian economic theory of the free market combines the academic support for the idea that a self-regulating, self-organizing free market can exist with the support for no government interference in the market.
Both Marxism and Libertarianism are extreme theories that have no place being used in a government. However, Libertarian economics is at the heart of our current neoliberalism with its nods to the classical liberalism of 1830's England, the failed economic theories based on the work of the classical economists, primarily Ricardo.
You can't be considered a student of economics if you haven't read Karl Marx and the other classical economists. But of the classical economists Marx was the only one who saw the problems that capitalism caused in the middle of the industrial revolution. He had insights to the problems and why they occurred, where he failed was in his solutions for the problems. He didn't live to see the populism in the early 20th century, by the two Roosevelts in the US and others in Europe including Keynes and Bismark. Marx didn't trust democracy to solve the worse abuses, he saw revolutions as the only possible solution.
Since our current governing economic theory springs from Austrian/Libertarian economic theory it is no surprise that some of the people who are disadvantaged by the economic theory would turn to Marxism as a solution. This is the problem with governing the nation's economy with extreme theories that disadvantage 99% of the members of the nation in order to increase the incomes of the 1% of the well off. You can't fault people for going to extremes when they are being disadvantaged by your extreme theories.
As I have said many times the biggest threat to our capitalistic economy and our democracy, isn't socialism, it is our current neoliberalism, which has distorted our economy to enrich the already rich by suppressing the wages of everyone else.
