There's always generational differences: when my dad and his mod mates walked past some middle aged geezer walking his dog, there was no way of telling whether that chap had been a fighter ace in the battle of Britain or had been in the first wave on Normandy. I think that created a tension between the Greatest Generation and what became the hippies and later yuppies of the 80s.
I don't see any tension between my generation and the millenials. I don't think there's anything notably distinguishable about them at all. All this media talk that somehow they are on a mission to do away with borders, countries, ways of working and are dead against previous generations is just piffle and spin from globalistas who are looking for some pawns. The nonsense of safe spaces and neutral gender pronouns and stuff is not a millenial creation, but that of old men in dark corridors of post-Marxist thought. The kids will soon wise up. I don't see a repeat of the Chinese cultural revolution just yet.
Millenials in lots of ways have had it a lot easier than other generations, but also they find themselves competing against the whole world for jobs and housing in places like the South East of the UK is absurdly expensive. I wish them good luck.