Heh, well I don't agree that the cut-off for Generation X should be 1981, or so. Students from the late '70s appear to be much more conservative than those from early '70s. I dunno why.
I remember going to college in the 1980's and listening to the professors complain that our generation was unmotivated because we wouldn't go out and protest like the 60's students did.
Fact was almost everyone of my age thought Reagan was cool and many wanted to be like the capitalist Alex P Keaton of Family Ties.
I also don't think Gen X should go all the way til 1981. I was born in 1981, so am technically a Gen X'er. But I have never identified with that group - all the movers and shakers in Gen X seem at least 10 yrs older than me. I would rather be grouped with "Gen Y" or the "Millenials" but both terms tend to be associated with vacuous teeny boppers. The "South Park Generation" is a much better term.