Okay, I may offend millennials but hear me out (and please, millennials, offer me an explanation as to why your generation do this)...I've just had a discussion with a millennial on a thread for a social media post showing the Tartan Army having a blast in Boston, her comment was about how it was "healing the millennials". I replied saying it's lovely for all generations to watch given how divisive the world is, and she said due to 9/11 millennials crave the world healing more. I get this a lot with millennials - like they think every cultural experience is about them or for them - even taking things that are from other generations and claiming it as their era - and they act like no other generation has had any big events to deal with. I argued the Lost Generation (world war) and Gen Z (being children/early adults when the whole world stopped) have had it worse out of all the living generations (in my opinion).
For context, I'm a British Gen X, also I have a lot of close millennial friends so it's not personal, it's about them as a collective. Also, this person was American - I think maybe the American nationalism adds to it (more so than with Brits of this generation).