Perhaps to those who do not already know it.
I cannot definitively speak for Gielen, and I most definitely cannot read his mind, but I perused a few of his other vids and do not see any indication he understands the
Marxist influence in everything I heard. A lot of people (even many leftists and Marxists) don't understand that socialism is not the main goal of Marxism.
Revolution is preeminent. Marx argued that class structures need to be redone.....
forever. He understood his own preferred structuring of class (Marxist communism) was a temporary condition (not a solution in an of itself that would endure in perpetuity).
Nearly every individual Gielen cites is left of center. One might argue they do what they do for their own reasons, motives, and objectives, but their leftism is inextricable from what they do. To that degree they are ideologues, not free men (and women). Gielen has exposed their power and inferred their control over everyone, but he didn't explore them as minions. This is the human condition. You and I both know that were we to fill the US legislature 100% with Christians it would likely be a mess and lead to various forms of tyranny. Liberals don't seem to realize that about their own ilk (or maybe they do and just don't talk about it

). Power corrupts and absolute power corrupts absolutely and.... ideology is power.
Studying the history of Marxism is much more informing than the Gielen vids (although he did do a good job of piecing together various collaborations between societal institutions and wealthy individuals). For example, it surprises most to learn Kaiser Wilhelm II, the German/Prussian ruler was among the first modern socialist leaders. He created a welfare state, pushed pro-labor (class) laws, used the academic institutions to foster his views in future generations, and got rid of all the anti-socialists. The chief reason he gets ignored as a socialist is because he was also a nationalist (nationalist socialist).
My point is the entire world has, one way or another, been fighting Marxism for more than a century. The chief difference nowadays is the conscious embrace of Marx's ideas and the eschewing to
time-prove alternatives by those in consolidated power. There are two ways to correct this: 1) wear out the knees, and 2) seek to make the necessary changes in societal institutions (such as restoring integrity to journalism, removing ideology from education, subjecting fiscal practices to the rule of law, de-centralizing power, etc.). Human history is a story of revolution. It's inevitable (apparently part of divine plan) but Marxism perverts it. All sin perverts that which God created.
Genesis 1:27-31
God created man in His own image, in the image of God He created him; male and female He created them. God blessed them; and God said to them, "Be fruitful and multiply, and fill the earth, and subdue it; and rule over the fish of the sea and over the birds of the sky and over every living thing that moves on the earth." Then God said, "Behold, I have given you every plant yielding seed that is on the surface of all the earth, and every tree which has fruit yielding seed; it shall be food for you; and to every beast of the earth and to every bird of the sky and to every thing that moves on the earth which has life, I have given every green plant for food"; and it was so. God saw all that He had made, and behold, it was very good. And there was evening and there was morning, the sixth day.
What does a sin-corrupted perversion of the dominion mandate look like?
It looks like that Geilen video. Before Geilen there was Babel.