Every generation complains that their kids are worse. It has nothing to do with race, ethnicity, gender, religion or political affiliation. It does seem to be related to age. Every teenager knows this is without justification.
Fifty years ago I clearly knew that the parents were wrong to criticize the younger generation, but now I realize my parents were right, and that of course the next generation is even worse. It started with Adam and Havah (oy, did they have problems with their kids!), and as it has gone on now for over three generations it is a minhag.