Indoctrination.
They have never been taught how to think critically, and have been told socialism is good and fair and wonderful while capitalism is mean and unfair and hateful.
They have been indoctrinated by the teachers unions and kept ignorant by the media. Neither teach about what has happened in Venezuela over the last 20 years.
Entitlement. In addition to being indoctrinated while attending College they were also told that said indoctrination was earning them a valuable degree that would make them tons of moola. When the reality hit that degrees in womens studies or feminism in the dark ages or political science were worthless, the occupy Wall Street hit the fan.
What?!?! A worthless, expensive degree is worthless?!?!?! Why?!? Hey, when in doubt, turn to your indoctrination. It must be that capitalism!!! Yeah, that is it.
Indoctrination
Yes, in earnest since the late 1940s.
Social Marxists (leftists, progressives) have been influencing us and especially our schools since the late 1940s (search up Frankfurt School).
John Dewey (of Dewey decimal system fame) was working it into education in the 1910s, as Pres. Wilson pushed it into government (19A gave it a great boost). They have not called themselves communist since Sen. Joe McCarthy spotlighted them in the 1950s.
Their influence has led to progressive taxation, massive gov welfare & entitlement programs, Godless schools, political correctness, LGBTQ+ rights, consensus-building, sage spaces and todays youts thinking socialism is great (the ultimate goal).