Sweeping Generaiizations:
There is a universe
There is natural law
There is life
There is consciousness
There are people
There are Americans
There are Republicans
All wrong, because all generalizations don't take account of the infinite particularities. In short, I don't know the name of your misuse of "over-generalization" but it is what you are claiming, without any specific justification. In short, a wordy way to say ... "you are shit". Senior citizen anger control failure (seen in a great many seniors in my own experience).
I think these analyses capture much of the generational character of the people born 1946 onward. It matches my own experience and what I see in others. if you think this characterization is unflattering, maybe you have an ego problem? Is any "character" of a generation ... wrong? No, it simply is what it is.