Or they have adopted a realistic view of history. The US has done loads of shitty things.
They have never had stalin like purges or a hitler like dictator.
An educated person, old or young, might look at Iran and be less likely to think "horrible regime hell bent on the destruction of Israel and the west" and more likely to think "huh, we probably shouldn't have fucked with their government decades ago".
Also that whole thing about voting being worth less for huge chunks of the country. Oh, and getting constantly screwed over by previous generations.
Being cynical doesn't make you naive.
Every generation everywhere feels they've been "screwed over" by their parents, or their parents' parents. You lack perspective.