I have a different point of view because I am closer to asok's age, but I thought part of the humor in this was derived from the fact that my generation is constantly blaming other people for the problems in our world rather than accepting responsibility for anything. Why is he yelling at the boss when he should be working on something. We spend so much time talking about all the things that are wrong in the world that we don't actually get anything done. That was where part of the humor (and sadness) of this comic came for me.
@ WNYmathGuy Nov: Interesting comment - spread the word to other nations who accredit the very obvious self-centeredness of that generation to simply every American. Cause I was never convinced that "All Americans" are ignorant and care only for their own nation/own good - I met too many people entirely different from foreign perception. But there is that tendency of self-centeredness and ignorance, no doubt. Good to hear, then, that this may be a generational problem, not one of an entire nation.