They are young, unwise and ignorant. The more education, the more they are indoctrinated by left-wing professors, most of which only know theory and have never seen the world away from an academic setting.
Travel to the vast majority of other countries in the world and then tell up about how they don’t like Capitalism. This Pollyanna world they live in while in college soon ends. Most grow up and realize the errors in their thinking, but the goal of educational indoctrination is to prevent that. Unfortunately for our country, it is very effective on most. Few are intelligent enough to challenge the ideas that have been pounded into their heads. It is hard to break from the norm and differ from the group think that goes on in most college campuses and classrooms.