>>12730456It is rooted in their ideology.
How can you unite everyone under one class if they are born with hierarchical tendencies?
That would be self-contradictory. That is why the USSR rejected IQ and genetics having any factor in human behavior, and thought everyone can be molded into whatever they want.
Same can be said about liberals since they want to believe that everyone is born a blank slate of the same features and that our lives shape us. They aim to create a society where climbing the social ladder is available for everyone, but reality continues to slap them on the face that some people are born with traits and tendencies to climb up the ladders like their parents, while others are not.
