I don't think the youth today is any different than any other time. They are ahead of everyone (as the ones before them), they rebel (as the ones before), they listen to music that their parents don't like... etc. They are adjusted to the era.
Sure, the era is a bad one: wars (always have been), alienation (subjective), bad music (subjective).
I too think that when I was a teen the music was better. But didn't our parents think the same? and their parents? and their parents? and their?... I think that every time has it's time & it's teens
I think the problem is not with them, not with the music (that is sadly, SADLY, adjusting too) - it's with the world itself.