I think culture is a pretty useful grouping for assessing a lot of traits and behaviours. Sure, it depends on the culture and the trait you are assessing, but as groupings go there are entire academic fields devoted to the study of how those things work.
Similarly with economic factors and class. These can be useful in describing proportions of a population. And how they react relative, again, providing the trait we are assessing is relative to that factor.
I know you are probably just being glib, and you are right that and generalisation can be pretty useless. But I still think the exceedingly broad "generation" is the most useless.
I am disappointed but not surprised by my generation at all. Last generation where general racism and other boomer traits could really take hold thanks to boomer parents passing them on. We’re also getting old enough for some of us to embrace that “get off my lawn” mentality.
"Caring about things is cringe, like, gag me. Voting doesn't do ANYTHING so I sit it out unlike you chumps, and I'm telling my kids the same thing."
"Why aren't any interests represented? That must be somebody's fault. Somebody who isn't me. Hey, did you get your tickets for Star Wars Celebration yet?"
Fighting? Us Gen Xers followed in the system the boomers laid out. What fighting??? The older Gen Xers got past the door. The younger half got shut out.
Gen z - the generation raised by their boomer grandparents, dresses like them, I have a big surprise for you how they think... Yaba daba skibidi toilet dooo!