I see this quote or mentions along this line popping up every single time someone says there is a regression in a newer generation.
But some generations actually are worse than their predecessors (at least in certain aspects). There are universal complaints about teenagers: loud, rude, etc, and there are specifics I see for youth today: they are emotionally more fragile and underdeveloped, are more passive in general, understand complex situations less, and have a harder time in accepting reality.
I'm not blaming anyone (if I were it would be the boomers that ruined the youth today), but blanked dismissal of issues because "this is how things have always been" doesn't help. For most of human history we've been at war and at the brink of starvation, and all the while there was a concentrated effort to handle those issues.