"Two thousand years ago someone complained about X and people also complain about X now. So X is no big deal!"?
Hippocrates complained about malaria. Does that mean contemporary concerns about malaria are invalid?
The parent mentioned "kids these days" and also "It's funny to watch, a lot of these have seen before and will again.".
Whether Socrates actually said this (or some other famous or not so famous guy from over 2000 years ago), it does show that that assessment is probably very very correct. And very funny to read indeed. Even if you don't agree with all of the parts of the statement (I don't) you will most probably find some you'd agree with. YMMV if you don't have kids :)
(So his observations could be of a cultural cycle rather than what every generation experiences from each perspective.)
Society is very much not the same - for one pedastry is a severe crime instead of an accepted institution. Insensitivity to changing circumstances hints at a fixed belief. If your compass always points to the same place on the dial as north it is broken. Not to mention that nearly everybody loves luxury - that is partially why it is expensive above and beyond production price!