I just don't really understand why today's students are so angry
I find this to be true about a lot of demographics, especially left leaning. Not surprising that on campuses, which tend to be left leaning. The left has cleverly embraced both sides of this issue, the better to put us at each others' throats, even within their own party. Social cohesiveness of all kinds is being dismantled.
I have a theory. Folks who use electronic devices to get their information without allowing themselves time to think on their own, without their devices, are essentially cyborgs. All this strife is being managed electronically. Where better than among our youth?
I think that if someone has a "news app" and they get their information from just that about the world that yes, they are cyborgs. They just take it at face value and then when they look for follow up information, if they even bother, they have already likely gotten a few keywords into their search that will just lead them to more information that simply backs up what they just read, if they even bothered to look beyond a meme or a headline anyway.