Marxism FAILED and worse was genocidal! It was replaced by Postmodernism. As I learn more each day about the poison philosophy of Postmodernism, the current foundation of Leftist thinking I learn that EVERYTHING, including science becomes a political power calculation.
Postmodern thinking asserts logic and facts are oppressive western Judeo-Christian concepts. Reality in their mind is malleable you can make your own best example is your sex is a social construct when science clearly proves otherwise. Since real reality is not malleable, the Postmodernist demands you say it is (i.e. gender neutral pronouns you MUST use or youre a bigot).
This leads the Postmodernist to a life of constant frustration and anger when real reality kicks their butt! Which explains why modern Leftists are in a constant state of rage and tantrum!
Not new... see Genesis Chapter 3, its origin.