I want to agree with you but I too am a bit out of touch (all the information is from friends). I don't like to defend the central gov but there is too much smoke and mirror to see through things. A lot of press reports genuine issues about China but also a mix of unverifiable information. I believe the local governance is actually improving. At central level it might be a very different story. However that said sometimes it is hard to judge. Did it really depart from Deng's approach? Was Deng's method deserving applause? My parents generation (the equivalent of boomers) suffered most throughout their youth and it is only getting better now. So for any long term impact, I'm not sure myself.
There is of course a variety of opinions across any demographic.
My impression is that, aside from people who've studied abroad, Chinese youth today are more conservative and nationalistic than their elders. They've been fed only on a diet of domestic media with external news censored and have grown up only seeing their standards of living rapidly improving with China taking a more central role on the world stage.
The older generations, who suffered through the Cultural Revolution and then saw it end, and those who grew up during Deng's period are more likely to be liberal and sympathetic to the West. Even Jiang Zemin spoke English and liked Western opera.
But I think if you ask people of about any demographic, they will tell you Xi has changed the trajectory that China was previously on. The end of 10-year term limits demonstrated an objective shift towards one-man rule instead of an oligarchy where power was more diffused between elite factions.
I agree with you. However Xi is only one person, there is much larger power structure behind him. And you are absolutely right, Jiang and Deng have much more experience with the west and 'modern' at their times. As for the younger generation I couldn't really blame them; the ones who are interested in the outside world already did so. I believe there are substantial proportions of youth who have a balanced world-view. But given the education structure and absolute large population base you won't see them represented. I couldn't give much credit for chinese students abroad, since large part of them are quite privileged and ignorant(depends on how they were brought up), the rest were the poorer, sponsored students, they would naturally be very nationalistic.